Vulnerability-Lookup

OESA-2026-1475 (CVE-2026-2757)

Vulnerability from osv_openeuler – Published: 2026-02-28 11:10 – Updated: 2026-08-06 11:10 – Source website

Summary

firefox security update

Details

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2757)

Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2758)

Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2759)

Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2760)

Sandbox escape in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2761)

Integer overflow in the JavaScript: Standard Library component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2762)

Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2763)

JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2764)

Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2765)

Use-after-free in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2766)

Use-after-free in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2767)

Sandbox escape in the Storage: IndexedDB component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2768)

A use-after-free vulnerability exists in the Storage: IndexedDB component of Mozilla Firefox, Firefox ESR, and Thunderbird. This vulnerability occurs when the program continues to reference a memory area after it has been freed, which can lead to program crashes, the use of unexpected values, or the execution of arbitrary code. This vulnerability poses a threat to confidentiality, integrity, and availability.(CVE-2026-2769)

Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2770)

Undefined behavior in the DOM: Core & HTML component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2771)

Use-after-free in the Audio/Video: Playback component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2772)

Incorrect boundary conditions in the Web Audio component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2773)

Integer overflow in the Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2774)

Mitigation bypass in the DOM: HTML Parser component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2775)

Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2776)

Privilege escalation in the Messaging System component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2777)

Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2778)

Incorrect boundary conditions in the Networking: JAR component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2779)

Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2780)

Integer overflow in the Libraries component in NSS. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2781)

Privilege escalation in the Netmonitor component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2782)

Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2783)

Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2784)

Invalid pointer in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2785)

Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2786)

Use-after-free in the DOM: Window and Location component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2787)

Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2788)

Use-after-free in the Graphics: ImageLib component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2789)

Same-origin policy bypass in the Networking: JAR component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2790)

Mitigation bypass in the Networking: Cache component. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2791)

Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 148, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2792)

Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.(CVE-2026-2793)

Severity

8.8 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2757	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2758	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2759	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2760	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2761	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2762	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2763	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2764	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2765	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2766	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2767	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2768	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2769	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2770	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2771	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2772	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2773	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2774	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2775	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2776	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2777	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2778	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2779	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2780	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2781	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2782	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2783	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2784	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2785	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2786	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2787	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2788	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2789	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2790	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2791	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2792	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-2793	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "firefox-140.8.0-1.oe2403sp3.aarch64.rpm",
          "firefox-debuginfo-140.8.0-1.oe2403sp3.aarch64.rpm",
          "firefox-debugsource-140.8.0-1.oe2403sp3.aarch64.rpm"
        ],
        "src": [
          "firefox-140.8.0-1.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "firefox-140.8.0-1.oe2403sp3.x86_64.rpm",
          "firefox-debuginfo-140.8.0-1.oe2403sp3.x86_64.rpm",
          "firefox-debugsource-140.8.0-1.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "firefox",
        "purl": "pkg:rpm/openEuler/firefox\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "140.8.0-1.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo\r\n\r\nSecurity Fix(es):\n\nIncorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2757)\n\nUse-after-free in the JavaScript: GC component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2758)\n\nIncorrect boundary conditions in the Graphics: ImageLib component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2759)\n\nSandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2760)\n\nSandbox escape in the Graphics: WebRender component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2761)\n\nInteger overflow in the JavaScript: Standard Library component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2762)\n\nUse-after-free in the JavaScript Engine component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2763)\n\nJIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2764)\n\nUse-after-free in the JavaScript Engine component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2765)\n\nUse-after-free in the JavaScript Engine: JIT component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2766)\n\nUse-after-free in the JavaScript: WebAssembly component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2767)\n\nSandbox escape in the Storage: IndexedDB component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2768)\n\nA use-after-free vulnerability exists in the Storage: IndexedDB component of Mozilla Firefox, Firefox ESR, and Thunderbird. This vulnerability occurs when the program continues to reference a memory area after it has been freed, which can lead to program crashes, the use of unexpected values, or the execution of arbitrary code. This vulnerability poses a threat to confidentiality, integrity, and availability.(CVE-2026-2769)\n\nUse-after-free in the DOM: Bindings (WebIDL) component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2770)\n\nUndefined behavior in the DOM: Core \u0026amp; HTML component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2771)\n\nUse-after-free in the Audio/Video: Playback component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2772)\n\nIncorrect boundary conditions in the Web Audio component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2773)\n\nInteger overflow in the Audio/Video component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2774)\n\nMitigation bypass in the DOM: HTML Parser component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2775)\n\nSandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2776)\n\nPrivilege escalation in the Messaging System component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2777)\n\nSandbox escape due to incorrect boundary conditions in the DOM: Core \u0026amp; HTML component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2778)\n\nIncorrect boundary conditions in the Networking: JAR component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2779)\n\nPrivilege escalation in the Netmonitor component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2780)\n\nInteger overflow in the Libraries component in NSS. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2781)\n\nPrivilege escalation in the Netmonitor component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2782)\n\nInformation disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2783)\n\nMitigation bypass in the DOM: Security component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2784)\n\nInvalid pointer in the JavaScript Engine component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2785)\n\nUse-after-free in the JavaScript Engine component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2786)\n\nUse-after-free in the DOM: Window and Location component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2787)\n\nIncorrect boundary conditions in the Audio/Video: GMP component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2788)\n\nUse-after-free in the Graphics: ImageLib component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2789)\n\nSame-origin policy bypass in the Networking: JAR component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2790)\n\nMitigation bypass in the Networking: Cache component. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2791)\n\nMemory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2792)\n\nMemory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox \u0026lt; 148, Firefox ESR \u0026lt; 115.33, Firefox ESR \u0026lt; 140.8, Thunderbird \u0026lt; 148, and Thunderbird \u0026lt; 140.8.(CVE-2026-2793)",
  "id": "OESA-2026-1475",
  "modified": "2026-08-06T11:10:29Z",
  "published": "2026-02-28T11:10:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1475"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2757"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2758"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2759"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2760"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2761"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2762"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2763"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2764"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2765"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2766"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2767"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2768"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2769"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2770"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2771"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2772"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2773"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2774"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2775"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2776"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2777"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2778"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2779"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2780"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2781"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2782"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2783"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2784"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2785"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2786"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2787"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2788"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2789"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2790"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2791"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2792"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2793"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "firefox security update",
  "upstream": [
    "CVE-2026-2757",
    "CVE-2026-2758",
    "CVE-2026-2759",
    "CVE-2026-2760",
    "CVE-2026-2761",
    "CVE-2026-2762",
    "CVE-2026-2763",
    "CVE-2026-2764",
    "CVE-2026-2765",
    "CVE-2026-2766",
    "CVE-2026-2767",
    "CVE-2026-2768",
    "CVE-2026-2769",
    "CVE-2026-2770",
    "CVE-2026-2771",
    "CVE-2026-2772",
    "CVE-2026-2773",
    "CVE-2026-2774",
    "CVE-2026-2775",
    "CVE-2026-2776",
    "CVE-2026-2777",
    "CVE-2026-2778",
    "CVE-2026-2779",
    "CVE-2026-2780",
    "CVE-2026-2781",
    "CVE-2026-2782",
    "CVE-2026-2783",
    "CVE-2026-2784",
    "CVE-2026-2785",
    "CVE-2026-2786",
    "CVE-2026-2787",
    "CVE-2026-2788",
    "CVE-2026-2789",
    "CVE-2026-2790",
    "CVE-2026-2791",
    "CVE-2026-2792",
    "CVE-2026-2793"
  ]
}

CVE-2026-2787 (GCVE-0-2026-2787)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52

Title

Use-after-free in the DOM: Window and Location component

Summary

Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-26 20:02 UTC

CWE

CWE-416 - Use After Free

Assigner

mozilla CNA under the mitre root

CNA scorecard E 38/100 over 750 records in the last 180 days details

References

6 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=2014560
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…

Impacted products

2 products

Vendor	Product	Version
Mozilla	Firefox	Unaffected: 115.33 , ≤ 115.* (rpm) Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)
Mozilla	Thunderbird	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)

Credits

Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
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              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T20:02:41.330Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThanOrEqual": "115.*",
              "status": "unaffected",
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          ]
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        {
          "lang": "en",
          "value": "Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic"
        }
      ],
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."
            }
          ],
          "value": "Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."
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      "providerMetadata": {
        "dateUpdated": "2026-04-13T13:52:56.351Z",
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        "shortName": "mozilla"
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        {
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2014560"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-13/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-14/"
        },
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          "url": "https://www.mozilla.org/security/advisories/mfsa2026-15/"
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          "url": "https://www.mozilla.org/security/advisories/mfsa2026-16/"
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          "url": "https://www.mozilla.org/security/advisories/mfsa2026-17/"
        }
      ],
      "title": "Use-after-free in the DOM: Window and Location component"
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    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
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    "datePublished": "2026-02-24T13:33:19.579Z",
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    "state": "PUBLISHED"
  },
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}

CVE-2026-2788 (GCVE-0-2026-2788)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-21 02:40

Title

Incorrect boundary conditions in the Audio/Video: GMP component

Summary

Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-28 03:11 UTC

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

mozilla CNA under the mitre root

CNA scorecard E 38/100 over 750 records in the last 180 days details

References

6 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=2014824
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…

Impacted products

2 products

Vendor	Product	Version
Mozilla	Firefox	Unaffected: 115.33 , ≤ 115.* (rpm) Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)
Mozilla	Thunderbird	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)

Credits

Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
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              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
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              "content": {
                "id": "CVE-2026-2788",
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          "dateUpdated": "2026-04-21T02:40:29.432Z",
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        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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      "affected": [
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          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
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          "product": "Thunderbird",
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              "versionType": "rpm"
            }
          ]
        }
      ],
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        {
          "lang": "en",
          "value": "Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic"
        }
      ],
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."
            }
          ],
          "value": "Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."
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        "dateUpdated": "2026-04-13T13:52:58.431Z",
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        {
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2014824"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-13/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-14/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-15/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-16/"
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        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-17/"
        }
      ],
      "title": "Incorrect boundary conditions in the Audio/Video: GMP component"
    }
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  },
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CVE-2026-2789 (GCVE-0-2026-2789)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53

Title

Use-after-free in the Graphics: ImageLib component

Summary

Use-after-free in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-26 20:15 UTC

CWE

CWE-416 - Use After Free

Assigner

mozilla CNA under the mitre root

CNA scorecard E 38/100 over 750 records in the last 180 days details

References

6 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=2015179
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…

Impacted products

2 products

Vendor	Product	Version
Mozilla	Firefox	Unaffected: 115.33 , ≤ 115.* (rpm) Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)
Mozilla	Thunderbird	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)

Credits

Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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            }
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        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
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      },
      "references": [
        {
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2015179"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-13/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-14/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-15/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-16/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-17/"
        }
      ],
      "title": "Use-after-free in the Graphics: ImageLib component"
    }
  },
  "cveMetadata": {
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    "datePublished": "2026-02-24T13:33:20.961Z",
    "dateReserved": "2026-02-19T15:06:31.096Z",
    "dateUpdated": "2026-04-13T13:53:00.745Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-2790 (GCVE-0-2026-2790)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53

Title

Same-origin policy bypass in the Networking: JAR component

Summary

Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-26 20:20 UTC

CWE

CWE-346 - Origin Validation Error

Assigner

mozilla CNA under the mitre root

CNA scorecard E 38/100 over 750 records in the last 180 days details

References

5 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=2008426
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…

Impacted products

2 products

Vendor	Product	Version
Mozilla	Firefox	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)
Mozilla	Thunderbird	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)

Credits

Surya Dev Singh

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 8.8,
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              "confidentialityImpact": "HIGH",
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T20:20:36.866Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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              "type": "text/html",
              "value": "Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."
            }
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      "providerMetadata": {
        "dateUpdated": "2026-04-13T13:53:42.980Z",
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        },
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          "url": "https://www.mozilla.org/security/advisories/mfsa2026-17/"
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-2791 (GCVE-0-2026-2791)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-21 02:40

Title

Mitigation bypass in the Networking: Cache component

Summary

Mitigation bypass in the Networking: Cache component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-28 03:10 UTC

CWE

CWE-288 - Authentication Bypass Using an Alternate Path or Channel

Assigner

mozilla CNA under the mitre root

CNA scorecard E 38/100 over 750 records in the last 180 days details

References

5 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=2015220
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…

Impacted products

2 products

Vendor	Product	Version
Mozilla	Firefox	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)
Mozilla	Thunderbird	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)

Credits

Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-21T02:40:55.797Z",
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        },
        "title": "CISA ADP Vulnrichment"
      }
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        }
      ],
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
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            }
          ],
          "value": "Mitigation bypass in the Networking: Cache component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."
        }
      ],
      "providerMetadata": {
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      },
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        },
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        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-15/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-16/"
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  },
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CVE-2026-2792 (GCVE-0-2026-2792)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-07-15 01:12

Title

Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148

Summary

Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-25 04:55 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

mozilla CNA under the mitre root

CNA scorecard E 38/100 over 750 records in the last 180 days details

References

33 references

URL	Tags
https://bugzilla.mozilla.org/buglist.cgi?bug_id=2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://access.redhat.com/security/cve/CVE-2026-2792	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2442318	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:3984	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3976	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4260	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3361	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3517	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3338	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3515	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3492	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4432	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3491	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3980	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3495	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3979	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3494	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4022	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3493	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3983	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4152	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3978	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3496	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3981	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3497	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3982	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3339	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3516	vendor-advisoryx_refsource_REDHAT

Impacted products

34 products

Vendor	Product	Version
Mozilla	Firefox	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)
Mozilla	Thunderbird	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:140.8.0-2.el10_1 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.1
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:140.8.0-2.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	Unaffected: 0:140.8.0-2.el7_9 , < * (rpm) cpe:/o:redhat:rhel_els:7
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:140.8.0-2.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:140.8.0-1.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support	Unaffected: 0:140.8.0-2.el8_2 , < * (rpm) cpe:/a:redhat:rhel_aus:8.2
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support	Unaffected: 0:140.8.0-1.el8_2 , < * (rpm) cpe:/a:redhat:rhel_aus:8.2
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Unaffected: 0:140.8.0-2.el8_4 , < * (rpm) cpe:/a:redhat:rhel_aus:8.4
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Unaffected: 0:140.8.0-2.el8_4 , < * (rpm) cpe:/a:redhat:rhel_eus_long_life:8.4
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:140.8.0-2.el8_6 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:140.8.0-1.el8_6 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service	Unaffected: 0:140.8.0-2.el8_6 , < * (rpm) cpe:/a:redhat:rhel_tus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service	Unaffected: 0:140.8.0-1.el8_6 , < * (rpm) cpe:/a:redhat:rhel_tus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	Unaffected: 0:140.8.0-2.el8_6 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	Unaffected: 0:140.8.0-1.el8_6 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.6
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:140.8.0-2.el8_8 , < * (rpm) cpe:/a:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:140.8.0-1.el8_8 , < * (rpm) cpe:/a:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:140.8.0-2.el8_8 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:140.8.0-1.el8_8 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:140.8.0-2.el9_7 , < * (rpm) cpe:/a:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:140.8.0-1.el9_7 , < * (rpm) cpe:/a:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	Unaffected: 0:140.8.0-2.el9_0 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.0
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	Unaffected: 0:140.8.0-1.el9_0 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.0
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:140.8.0-1.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:140.8.0-2.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	Unaffected: 0:140.8.0-2.el9_4 , < * (rpm) cpe:/a:redhat:rhel_eus:9.4
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	Unaffected: 0:140.8.0-1.el9_4 , < * (rpm) cpe:/a:redhat:rhel_eus:9.4
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:140.8.0-2.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:140.8.0-1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7

Credits

Andrew McCreight, Maurice Dauer, Olli Pettay, Ryan Hunt

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
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CVE-2026-2793 (GCVE-0-2026-2793)

Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-07-15 01:12

Title

Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148

Summary

Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-25 04:55 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

mozilla CNA under the mitre root

CNA scorecard E 38/100 over 750 records in the last 180 days details

References

34 references

URL	Tags
https://bugzilla.mozilla.org/buglist.cgi?bug_id=2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://access.redhat.com/security/cve/CVE-2026-2793	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2442287	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:3984	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3976	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4260	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3361	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3517	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3338	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3515	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3492	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4432	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3491	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3980	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3495	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3979	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3494	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4022	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3493	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3983	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:4152	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3978	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3496	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3981	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3497	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3982	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3339	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3516	vendor-advisoryx_refsource_REDHAT

Impacted products

34 products

Vendor	Product	Version
Mozilla	Firefox	Unaffected: 115.33 , ≤ 115.* (rpm) Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)
Mozilla	Thunderbird	Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm)
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:140.8.0-2.el10_1 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.1
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:140.8.0-2.el10_0 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	Unaffected: 0:140.8.0-2.el7_9 , < * (rpm) cpe:/o:redhat:rhel_els:7
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:140.8.0-2.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:140.8.0-1.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support	Unaffected: 0:140.8.0-2.el8_2 , < * (rpm) cpe:/a:redhat:rhel_aus:8.2
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support	Unaffected: 0:140.8.0-1.el8_2 , < * (rpm) cpe:/a:redhat:rhel_aus:8.2
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Unaffected: 0:140.8.0-2.el8_4 , < * (rpm) cpe:/a:redhat:rhel_aus:8.4
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Unaffected: 0:140.8.0-2.el8_4 , < * (rpm) cpe:/a:redhat:rhel_eus_long_life:8.4
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:140.8.0-2.el8_6 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:140.8.0-1.el8_6 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service	Unaffected: 0:140.8.0-2.el8_6 , < * (rpm) cpe:/a:redhat:rhel_tus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service	Unaffected: 0:140.8.0-1.el8_6 , < * (rpm) cpe:/a:redhat:rhel_tus:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	Unaffected: 0:140.8.0-2.el8_6 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.6
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	Unaffected: 0:140.8.0-1.el8_6 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.6
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:140.8.0-2.el8_8 , < * (rpm) cpe:/a:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:140.8.0-1.el8_8 , < * (rpm) cpe:/a:redhat:rhel_tus:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:140.8.0-2.el8_8 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:140.8.0-1.el8_8 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:140.8.0-2.el9_7 , < * (rpm) cpe:/a:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:140.8.0-1.el9_7 , < * (rpm) cpe:/a:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	Unaffected: 0:140.8.0-2.el9_0 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.0
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	Unaffected: 0:140.8.0-1.el9_0 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.0
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:140.8.0-1.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:140.8.0-2.el9_2 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	Unaffected: 0:140.8.0-2.el9_4 , < * (rpm) cpe:/a:redhat:rhel_eus:9.4
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	Unaffected: 0:140.8.0-1.el9_4 , < * (rpm) cpe:/a:redhat:rhel_eus:9.4
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:140.8.0-2.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:140.8.0-1.el9_6 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7

Credits

Andrew McCreight, Christian Holler

Show details on NVD website

JSON

To clipboard

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            "tags": [
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            "tags": [
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          {
            "tags": [
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              "x_refsource_REDHAT"
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          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:4152"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:3978"
          },
          {
            "tags": [
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              "x_refsource_REDHAT"
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          },
          {
            "tags": [
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          },
          {
            "tags": [
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              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:3982"
          },
          {
            "tags": [
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              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:3339"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:3516"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:3984: Red Hat Enterprise Linux Server (v. 7 ELS)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3976: Red Hat Enterprise Linux AppStream EUS (v. 10.0)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:4260: Red Hat Enterprise Linux AppStream EUS (v. 10.0)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3361: Red Hat Enterprise Linux AppStream (v. 10)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3517: Red Hat Enterprise Linux AppStream (v. 10)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3338: Red Hat Enterprise Linux AppStream (v. 8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3515: Red Hat Enterprise Linux AppStream (v. 8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3492: Red Hat Enterprise Linux AppStream AUS (v. 8.2)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:4432: Red Hat Enterprise Linux AppStream AUS (v. 8.2)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3491: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3980: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3495: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3979: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3494: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:4022: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3493: Red Hat Enterprise Linux AppStream E4S (v.9.0)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3983: Red Hat Enterprise Linux AppStream E4S (v.9.0)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:4152: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3978: Red Hat Enterprise Linux AppStream E4S (v.9.2)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3496: Red Hat Enterprise Linux AppStream EUS (v.9.4)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3981: Red Hat Enterprise Linux AppStream EUS (v.9.4)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3497: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3982: Red Hat Enterprise Linux AppStream EUS (v.9.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3339: Red Hat Enterprise Linux AppStream (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:3516: Red Hat Enterprise Linux AppStream (v. 9)"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-02-24T14:02:07.299Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-02-24T13:33:23.571Z",
            "value": "Made public."
          }
        ],
        "title": "firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148",
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThanOrEqual": "115.*",
              "status": "unaffected",
              "version": "115.33",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "140.*",
              "status": "unaffected",
              "version": "140.8",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "148",
              "versionType": "rpm"
            }
          ]
        },
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThanOrEqual": "140.*",
              "status": "unaffected",
              "version": "140.8",
              "versionType": "rpm"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "148",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Andrew McCreight, Christian Holler"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."
            }
          ],
          "value": "Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-13T13:53:03.837Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
        {
          "name": "Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148",
          "url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=2015196%2C2016423%2C2016498"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-13/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-14/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-15/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-16/"
        },
        {
          "url": "https://www.mozilla.org/security/advisories/mfsa2026-17/"
        }
      ],
      "title": "Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2026-2793",
    "datePublished": "2026-02-24T13:33:23.571Z",
    "dateReserved": "2026-02-19T15:06:38.377Z",
    "dateUpdated": "2026-07-15T01:12:25.653Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2026-1475 (CVE-2026-2757)

CVE-2026-2787 (GCVE-0-2026-2787)

CVE-2026-2788 (GCVE-0-2026-2788)

CVE-2026-2789 (GCVE-0-2026-2789)

CVE-2026-2790 (GCVE-0-2026-2790)

CVE-2026-2791 (GCVE-0-2026-2791)

CVE-2026-2792 (GCVE-0-2026-2792)

CVE-2026-2793 (GCVE-0-2026-2793)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour