CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9841 vulnerabilities reference this CWE, most recent first.
GHSA-QQV6-XC9F-M5J9
Vulnerability from github – Published: 2022-05-24 17:48 – Updated: 2022-05-24 17:48Use after free in Blink in Google Chrome on OS X prior to 90.0.4430.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2021-21204"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-26T17:15:00Z",
"severity": "HIGH"
},
"details": "Use after free in Blink in Google Chrome on OS X prior to 90.0.4430.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-qqv6-xc9f-m5j9",
"modified": "2022-05-24T17:48:51Z",
"published": "2022-05-24T17:48:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21204"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_14.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1189926"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202104-08"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4906"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-QQWR-J46X-F6MJ
Vulnerability from github – Published: 2022-05-24 17:05 – Updated: 2022-05-24 17:05Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
{
"affected": [],
"aliases": [
"CVE-2019-17011"
],
"database_specific": {
"cwe_ids": [
"CWE-362",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-01-08T22:15:00Z",
"severity": "MODERATE"
},
"details": "Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potentially exploitable crash. This vulnerability affects Thunderbird \u003c 68.3, Firefox ESR \u003c 68.3, and Firefox \u003c 71.",
"id": "GHSA-qqwr-j46x-f6mj",
"modified": "2022-05-24T17:05:49Z",
"published": "2022-05-24T17:05:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-17011"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0292"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:0295"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1591334"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202003-02"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202003-10"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4241-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4335-1"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-36"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-37"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2019-38"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QQX4-4522-HC7J
Vulnerability from github – Published: 2022-05-14 03:09 – Updated: 2022-05-14 03:09When adding a range to an object in the DOM, it is possible to use "addRange" to add the range to an incorrect root object. This triggers a use-after-free, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 52 and Thunderbird < 52.
{
"affected": [],
"aliases": [
"CVE-2017-5403"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-06-11T21:29:00Z",
"severity": "CRITICAL"
},
"details": "When adding a range to an object in the DOM, it is possible to use \"addRange\" to add the range to an incorrect root object. This triggers a use-after-free, resulting in a potentially exploitable crash. This vulnerability affects Firefox \u003c 52 and Thunderbird \u003c 52.",
"id": "GHSA-qqx4-4522-hc7j",
"modified": "2022-05-14T03:09:34Z",
"published": "2022-05-14T03:09:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-5403"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1340186"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2017-05"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2017-09"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/96691"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1037966"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QR27-28HJ-HHXG
Vulnerability from github – Published: 2023-07-29 00:30 – Updated: 2024-04-04 06:25Use after free in ANGLE in Google Chrome prior to 96.0.4664.93 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2021-4317"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-29T00:15:10Z",
"severity": "HIGH"
},
"details": "Use after free in ANGLE in Google Chrome prior to 96.0.4664.93 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-qr27-28hj-hhxg",
"modified": "2024-04-04T06:25:12Z",
"published": "2023-07-29T00:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4317"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1260783"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQKT7EGDD2P3L7S3NXEDDRCPK4NNZNWJ"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QR35-4R77-5H27
Vulnerability from github – Published: 2022-05-14 01:48 – Updated: 2022-05-14 01:48A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
{
"affected": [],
"aliases": [
"CVE-2018-8544"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-11-14T01:29:00Z",
"severity": "HIGH"
},
"details": "A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka \"Windows VBScript Engine Remote Code Execution Vulnerability.\" This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.",
"id": "GHSA-qr35-4r77-5h27",
"modified": "2022-05-14T01:48:30Z",
"published": "2022-05-14T01:48:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-8544"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8544"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/45923"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105787"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1042118"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QR4J-65QH-7738
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-49167"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T17:16:51Z",
"severity": "MODERATE"
},
"details": "Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-qr4j-65qh-7738",
"modified": "2026-07-14T18:32:00Z",
"published": "2026-07-14T18:32:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49167"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49167"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QR52-2H56-3572
Vulnerability from github – Published: 2024-05-08 00:31 – Updated: 2024-05-08 00:31Foxit PDF Editor Stamp Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of Annotation objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14356.
{
"affected": [],
"aliases": [
"CVE-2021-34955"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-07T23:15:09Z",
"severity": "HIGH"
},
"details": "Foxit PDF Editor Stamp Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the handling of Annotation objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14356.",
"id": "GHSA-qr52-2h56-3572",
"modified": "2024-05-08T00:31:13Z",
"published": "2024-05-08T00:31:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34955"
},
{
"type": "WEB",
"url": "https://www.foxit.com/support/security-bulletins.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1186"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QR6C-MGW3-XXQ8
Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2024-12-26 21:30In the Linux kernel, the following vulnerability has been resolved:
atm: iphase: fix possible use-after-free in ia_module_exit()
This module's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the driver's remove function has finished, which would result in a use-after-free.
Fix by calling del_timer_sync(), which makes sure the timer handler has finished, and unable to re-schedule itself.
{
"affected": [],
"aliases": [
"CVE-2021-47357"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T15:15:22Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\natm: iphase: fix possible use-after-free in ia_module_exit()\n\nThis module\u0027s remove path calls del_timer(). However, that function\ndoes not wait until the timer handler finishes. This means that the\ntimer handler may still be running after the driver\u0027s remove function\nhas finished, which would result in a use-after-free.\n\nFix by calling del_timer_sync(), which makes sure the timer handler\nhas finished, and unable to re-schedule itself.",
"id": "GHSA-qr6c-mgw3-xxq8",
"modified": "2024-12-26T21:30:36Z",
"published": "2024-05-21T15:31:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47357"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1c72e6ab66b9598cac741ed397438a52065a8f1f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/89ce0b0747f319eb70f85bc820dcc43cebbd5417"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9e161687855175334ca93c6c3ccb221731194479"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a832ee2f2145f57443b2d565f8cb5490e8339f42"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b58d246a058ae88484758cd4ab27b3180fd5ecf8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bcdd2be48edd8c6867fb44112cb8d18086beae29"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c9172498d4d62c9b64e5fb37c1ee0343e65fe51b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d1fb12412874c94ad037e11d0ecdd1140a439297"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e759ff76ebbbfcdcf83b6634c54dc47828573d8b"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QR83-G76R-XRJW
Vulnerability from github – Published: 2022-02-15 00:02 – Updated: 2022-03-31 00:00Use after free in Safe browsing in Google Chrome prior to 97.0.4692.99 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2022-0289"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-12T02:15:00Z",
"severity": "HIGH"
},
"details": "Use after free in Safe browsing in Google Chrome prior to 97.0.4692.99 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-qr83-g76r-xrjw",
"modified": "2022-03-31T00:00:57Z",
"published": "2022-02-15T00:02:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0289"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2022/01/stable-channel-update-for-desktop_19.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1284367"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/166547/Chrome-safe_browsing-ThreatDetails-OnReceivedThreatDOMDetails-Use-After-Free.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QR84-8H9R-MCX5
Vulnerability from github – Published: 2022-05-17 02:32 – Updated: 2025-04-20 03:35Adobe Acrobat Reader versions 11.0.19 and earlier, 15.006.30280 and earlier, 15.023.20070 and earlier have an exploitable use after free vulnerability in the XML Forms Architecture (XFA) engine. Successful exploitation could lead to arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2017-3035"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-04-12T14:59:00Z",
"severity": "HIGH"
},
"details": "Adobe Acrobat Reader versions 11.0.19 and earlier, 15.006.30280 and earlier, 15.023.20070 and earlier have an exploitable use after free vulnerability in the XML Forms Architecture (XFA) engine. Successful exploitation could lead to arbitrary code execution.",
"id": "GHSA-qr84-8h9r-mcx5",
"modified": "2025-04-20T03:35:55Z",
"published": "2022-05-17T02:32:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-3035"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb17-11.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/97550"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1038228"
},
{
"type": "WEB",
"url": "http://www.zerodayinitiative.com/advisories/ZDI-17-261"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.