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OESA-2026-2109 (CVE-2026-2776)

Vulnerability from osv_openeuler – Published: 2026-04-25 11:11 – Updated: 2026-08-06 11:11 – Source website
VLAI
Summary
thunderbird security update
Details

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

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

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

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 < 149.0.2, Firefox ESR < 115.34.1, and Firefox ESR < 140.9.1.(CVE-2026-5731)

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5732)

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5734)

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6746)

Use-after-free vulnerability in the WebRTC component of Firefox. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.(CVE-2026-6747)

Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.(CVE-2026-6748)

Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6749)

Privilege escalation vulnerability in the WebRender graphics component of Firefox browser. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6750)

An uninitialized memory vulnerability exists in the Audio/Video: Web Codecs component of Firefox browser. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.(CVE-2026-6751)

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6752)

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.(CVE-2026-6753)

A use-after-free vulnerability exists in the JavaScript Engine component of Mozilla Firefox. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause the application to crash. This vulnerability has been fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6754)

Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.(CVE-2026-6757)

A use-after-free vulnerability exists in the Widget: Cocoa component of Mozilla Firefox and Thunderbird. The vulnerability stems from the program referencing memory after it has been freed. An attacker could exploit this vulnerability to cause the application to crash, read unexpected values, or execute arbitrary code, thereby affecting the confidentiality, integrity, and availability of the system. This vulnerability affects Firefox versions up to 149 and corresponding versions of Thunderbird.(CVE-2026-6759)

A privilege escalation vulnerability exists in the Networking component of Mozilla Firefox and Thunderbird. An attacker could potentially exploit this vulnerability to escalate privileges, which may lead to remote code execution, impacting confidentiality, integrity, and availability. This vulnerability affects Firefox versions up to 149 and corresponding versions of Thunderbird.(CVE-2026-6761)

Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.(CVE-2026-6762)

A mitigation bypass vulnerability exists in the File Handling component of Mozilla Firefox and Thunderbird. This vulnerability could allow an attacker to bypass security mitigations, potentially impacting the confidentiality, integrity, and availability of the system. According to VulDB, this vulnerability is rated as critical. Affected versions include Firefox up to version 149, Firefox ESR prior to 140.10, Thunderbird up to version 149, and Thunderbird ESR prior to 140.10.(CVE-2026-6763)

An incorrect boundary condition vulnerability exists in the DOM (Document Object Model) 'Device Interfaces' component of Mozilla Firefox and Thunderbird. This vulnerability is classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), which is a memory corruption issue. An attacker could potentially exploit this by tricking a user into visiting a specially crafted web page, causing the application to read from or write to a memory location outside the intended boundary of a buffer. This impacts the confidentiality, integrity, and availability of the affected system.(CVE-2026-6764)

An information disclosure vulnerability (CWE-200) exists in the Form Autofill component of Mozilla Firefox. This vulnerability could allow sensitive information to be exposed to unauthorized actors, posing a threat to data confidentiality. This vulnerability affects Firefox versions up to 149, Firefox ESR versions prior to 140.10, Thunderbird versions up to 149, and Thunderbird ESR versions prior to 140.10.(CVE-2026-6765)

An incorrect boundary condition vulnerability exists in the Network Security Services (NSS) library used by Mozilla Firefox, Firefox ESR, and Thunderbird. An attacker could exploit this vulnerability to read from or write to a memory location outside the intended boundary of a buffer, leading to memory corruption. This could result in application crashes, denial of service, or potentially arbitrary code execution, threatening confidentiality, integrity, and availability.(CVE-2026-6766)

A security vulnerability exists in the Network Security Services (NSS) library used by Mozilla Firefox and Thunderbird. This vulnerability is rated as critical and could allow an attacker to remotely execute arbitrary code, thereby compromising the confidentiality, integrity, and availability of the system. Affected versions include Firefox up to 149 and earlier, as well as corresponding versions of Firefox ESR and Thunderbird.(CVE-2026-6767)

A privilege escalation vulnerability exists in the Debugger component of Mozilla Firefox and Thunderbird. An attacker could potentially exploit this vulnerability to execute arbitrary code or escalate privileges on affected systems, impacting confidentiality, integrity, and availability. This vulnerability affects Firefox versions up to 149 and corresponding versions of Thunderbird.(CVE-2026-6769)

A critical vulnerability exists in the Storage: IndexedDB component of Mozilla Firefox (web browser) and Thunderbird (mail client). An attacker could potentially exploit this vulnerability to execute remote code on affected systems, impacting confidentiality, integrity, and availability. This vulnerability affects Firefox versions up to 149, Firefox ESR versions prior to 140.10, Thunderbird versions up to 149, and Thunderbird ESR versions prior to 140.10.(CVE-2026-6770)

A mitigation bypass vulnerability exists in the DOM (Document Object Model) security component of Mozilla Firefox and Thunderbird. This vulnerability affects Firefox versions up to 149, Firefox ESR versions prior to 140.10, Thunderbird versions up to 149, and Thunderbird ESR versions prior to 140.10. An attacker could potentially exploit this vulnerability to bypass certain security mechanisms, posing a threat to system integrity.(CVE-2026-6771)

An incorrect boundary conditions vulnerability (CWE-119) exists in the Network Security Services (NSS) library used by Mozilla Firefox. The vulnerability occurs when the product performs operations on a memory buffer, allowing it to read from or write to a memory location outside the intended boundary of the buffer, leading to memory corruption. This impacts confidentiality, integrity, and availability. Affected versions include Firefox up to 149, Firefox ESR prior to 115.35, Firefox ESR prior to 140.10, Thunderbird prior to 150, and Thunderbird prior to 140.10.(CVE-2026-6772)

An incorrect boundary conditions vulnerability exists in the WebRTC Networking component of Mozilla Firefox and Thunderbird. This vulnerability is classified as critical, with the root cause being CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer. An attacker could exploit this vulnerability to read from or write to a memory location outside the intended boundary of a buffer, leading to memory corruption. This impacts the confidentiality, integrity, and availability of the system. This vulnerability affects Firefox versions up to 149, Firefox ESR versions prior to 140.10, Thunderbird versions up to 149, and Thunderbird ESR versions prior to 140.10.(CVE-2026-6776)

Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6785)

Memory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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 150 and Firefox ESR 140.10.(CVE-2026-6786)

Severity
10.0 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
https://www.openeuler.org/zh/security/security-bu… ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-2776 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-2780 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-5731 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-5732 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-5734 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6746 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6747 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6748 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6749 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6750 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6751 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6752 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6753 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6754 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6757 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6759 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6761 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6762 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6763 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6764 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6765 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6766 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6767 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6769 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6770 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6771 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6772 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6776 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6785 ADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-6786 ADVISORY
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "thunderbird-140.10.0-1.oe2403sp3.aarch64.rpm",
          "thunderbird-debuginfo-140.10.0-1.oe2403sp3.aarch64.rpm",
          "thunderbird-debugsource-140.10.0-1.oe2403sp3.aarch64.rpm",
          "thunderbird-librnp-rnp-140.10.0-1.oe2403sp3.aarch64.rpm",
          "thunderbird-wayland-140.10.0-1.oe2403sp3.aarch64.rpm"
        ],
        "src": [
          "thunderbird-140.10.0-1.oe2403sp3.src.rpm"
        ],
        "x86_64": [
          "thunderbird-140.10.0-1.oe2403sp3.x86_64.rpm",
          "thunderbird-debuginfo-140.10.0-1.oe2403sp3.x86_64.rpm",
          "thunderbird-debugsource-140.10.0-1.oe2403sp3.x86_64.rpm",
          "thunderbird-librnp-rnp-140.10.0-1.oe2403sp3.x86_64.rpm",
          "thunderbird-wayland-140.10.0-1.oe2403sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP3",
        "name": "thunderbird",
        "purl": "pkg:rpm/openEuler/thunderbird\u0026distro=openEuler-24.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "140.10.0-1.oe2403sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Critical"
  },
  "details": "Mozilla Thunderbird is a standalone mail and newsgroup client.\r\n\r\nSecurity Fix(es):\n\nSandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.(CVE-2026-2776)\n\nPrivilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.(CVE-2026-2780)\n\nMemory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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; 149.0.2, Firefox ESR \u0026lt; 115.34.1, and Firefox ESR \u0026lt; 140.9.1.(CVE-2026-5731)\n\nIncorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox \u0026lt; 149.0.2 and Firefox ESR \u0026lt; 140.9.1.(CVE-2026-5732)\n\nMemory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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; 149.0.2 and Firefox ESR \u0026lt; 140.9.1.(CVE-2026-5734)\n\nUse-after-free in the DOM: Core \u0026amp; HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6746)\n\nUse-after-free vulnerability in the WebRTC component of Firefox. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.(CVE-2026-6747)\n\nUninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.(CVE-2026-6748)\n\nInformation disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6749)\n\nPrivilege escalation vulnerability in the WebRender graphics component of Firefox browser. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6750)\n\nAn uninitialized memory vulnerability exists in the Audio/Video: Web Codecs component of Firefox browser. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.(CVE-2026-6751)\n\nIncorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6752)\n\nIncorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.(CVE-2026-6753)\n\nA use-after-free vulnerability exists in the JavaScript Engine component of Mozilla Firefox. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause the application to crash. This vulnerability has been fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6754)\n\nInvalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.(CVE-2026-6757)\n\nA use-after-free vulnerability exists in the Widget: Cocoa component of Mozilla Firefox and Thunderbird. The vulnerability stems from the program referencing memory after it has been freed. An attacker could exploit this vulnerability to cause the application to crash, read unexpected values, or execute arbitrary code, thereby affecting the confidentiality, integrity, and availability of the system. This vulnerability affects Firefox versions up to 149 and corresponding versions of Thunderbird.(CVE-2026-6759)\n\nA privilege escalation vulnerability exists in the Networking component of Mozilla Firefox and Thunderbird. An attacker could potentially exploit this vulnerability to escalate privileges, which may lead to remote code execution, impacting confidentiality, integrity, and availability. This vulnerability affects Firefox versions up to 149 and corresponding versions of Thunderbird.(CVE-2026-6761)\n\nSpoofing issue in the DOM: Core \u0026amp; HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.(CVE-2026-6762)\n\nA mitigation bypass vulnerability exists in the File Handling component of Mozilla Firefox and Thunderbird. This vulnerability could allow an attacker to bypass security mitigations, potentially impacting the confidentiality, integrity, and availability of the system. According to VulDB, this vulnerability is rated as critical. Affected versions include Firefox up to version 149, Firefox ESR prior to 140.10, Thunderbird up to version 149, and Thunderbird ESR prior to 140.10.(CVE-2026-6763)\n\nAn incorrect boundary condition vulnerability exists in the DOM (Document Object Model) \u0026apos;Device Interfaces\u0026apos; component of Mozilla Firefox and Thunderbird. This vulnerability is classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer), which is a memory corruption issue. An attacker could potentially exploit this by tricking a user into visiting a specially crafted web page, causing the application to read from or write to a memory location outside the intended boundary of a buffer. This impacts the confidentiality, integrity, and availability of the affected system.(CVE-2026-6764)\n\nAn information disclosure vulnerability (CWE-200) exists in the Form Autofill component of Mozilla Firefox. This vulnerability could allow sensitive information to be exposed to unauthorized actors, posing a threat to data confidentiality. This vulnerability affects Firefox versions up to 149, Firefox ESR versions prior to 140.10, Thunderbird versions up to 149, and Thunderbird ESR versions prior to 140.10.(CVE-2026-6765)\n\nAn incorrect boundary condition vulnerability exists in the Network Security Services (NSS) library used by Mozilla Firefox, Firefox ESR, and Thunderbird. An attacker could exploit this vulnerability to read from or write to a memory location outside the intended boundary of a buffer, leading to memory corruption. This could result in application crashes, denial of service, or potentially arbitrary code execution, threatening confidentiality, integrity, and availability.(CVE-2026-6766)\n\nA security vulnerability exists in the Network Security Services (NSS) library used by Mozilla Firefox and Thunderbird. This vulnerability is rated as critical and could allow an attacker to remotely execute arbitrary code, thereby compromising the confidentiality, integrity, and availability of the system. Affected versions include Firefox up to 149 and earlier, as well as corresponding versions of Firefox ESR and Thunderbird.(CVE-2026-6767)\n\nA privilege escalation vulnerability exists in the Debugger component of Mozilla Firefox and Thunderbird. An attacker could potentially exploit this vulnerability to execute arbitrary code or escalate privileges on affected systems, impacting confidentiality, integrity, and availability. This vulnerability affects Firefox versions up to 149 and corresponding versions of Thunderbird.(CVE-2026-6769)\n\nA critical vulnerability exists in the Storage: IndexedDB component of Mozilla Firefox (web browser) and Thunderbird (mail client). An attacker could potentially exploit this vulnerability to execute remote code on affected systems, impacting confidentiality, integrity, and availability. This vulnerability affects Firefox versions up to 149, Firefox ESR versions prior to 140.10, Thunderbird versions up to 149, and Thunderbird ESR versions prior to 140.10.(CVE-2026-6770)\n\nA mitigation bypass vulnerability exists in the DOM (Document Object Model) security component of Mozilla Firefox and Thunderbird. This vulnerability affects Firefox versions up to 149, Firefox ESR versions prior to 140.10, Thunderbird versions up to 149, and Thunderbird ESR versions prior to 140.10. An attacker could potentially exploit this vulnerability to bypass certain security mechanisms, posing a threat to system integrity.(CVE-2026-6771)\n\nAn incorrect boundary conditions vulnerability (CWE-119) exists in the Network Security Services (NSS) library used by Mozilla Firefox. The vulnerability occurs when the product performs operations on a memory buffer, allowing it to read from or write to a memory location outside the intended boundary of the buffer, leading to memory corruption. This impacts confidentiality, integrity, and availability. Affected versions include Firefox up to 149, Firefox ESR prior to 115.35, Firefox ESR prior to 140.10, Thunderbird prior to 150, and Thunderbird prior to 140.10.(CVE-2026-6772)\n\nAn incorrect boundary conditions vulnerability exists in the WebRTC Networking component of Mozilla Firefox and Thunderbird. This vulnerability is classified as critical, with the root cause being CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer. An attacker could exploit this vulnerability to read from or write to a memory location outside the intended boundary of a buffer, leading to memory corruption. This impacts the confidentiality, integrity, and availability of the system. This vulnerability affects Firefox versions up to 149, Firefox ESR versions prior to 140.10, Thunderbird versions up to 149, and Thunderbird ESR versions prior to 140.10.(CVE-2026-6776)\n\nMemory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6785)\n\nMemory safety bugs present in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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 150 and Firefox ESR 140.10.(CVE-2026-6786)",
  "id": "OESA-2026-2109",
  "modified": "2026-08-06T11:11:06Z",
  "published": "2026-04-25T11:11:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2109"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2776"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-2780"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5731"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5732"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5734"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6746"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6747"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6748"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6749"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6750"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6751"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6752"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6753"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6754"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6757"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6759"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6761"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6762"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6763"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6764"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6765"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6766"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6767"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6769"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6770"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6771"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6772"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6776"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6785"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6786"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "thunderbird security update",
  "upstream": [
    "CVE-2026-2776",
    "CVE-2026-2780",
    "CVE-2026-5731",
    "CVE-2026-5732",
    "CVE-2026-5734",
    "CVE-2026-6746",
    "CVE-2026-6747",
    "CVE-2026-6748",
    "CVE-2026-6749",
    "CVE-2026-6750",
    "CVE-2026-6751",
    "CVE-2026-6752",
    "CVE-2026-6753",
    "CVE-2026-6754",
    "CVE-2026-6757",
    "CVE-2026-6759",
    "CVE-2026-6761",
    "CVE-2026-6762",
    "CVE-2026-6763",
    "CVE-2026-6764",
    "CVE-2026-6765",
    "CVE-2026-6766",
    "CVE-2026-6767",
    "CVE-2026-6769",
    "CVE-2026-6770",
    "CVE-2026-6771",
    "CVE-2026-6772",
    "CVE-2026-6776",
    "CVE-2026-6785",
    "CVE-2026-6786"
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.


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.