Common Weakness Enumeration
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9821 vulnerabilities reference this CWE, most recent first.
GHSA-QQHM-6QQW-68J4
Vulnerability from github – Published: 2026-07-03 21:31 – Updated: 2026-07-03 21:31
VLAI
Details
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2026-58294"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-03T21:17:04Z",
"severity": "HIGH"
},
"details": "Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-qqhm-6qqw-68j4",
"modified": "2026-07-03T21:31:40Z",
"published": "2026-07-03T21:31:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58294"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58294"
}
],
"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-QQJ9-Q7V2-H4GF
Vulnerability from github – Published: 2025-11-11 18:30 – Updated: 2025-12-16 18:31
VLAI
Details
Use after free in Multimedia Class Scheduler Service (MMCSS) allows an authorized attacker to elevate privileges locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-60707"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-11T18:15:38Z",
"severity": "HIGH"
},
"details": "Use after free in Multimedia Class Scheduler Service (MMCSS) allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-qqj9-q7v2-h4gf",
"modified": "2025-12-16T18:31:31Z",
"published": "2025-11-11T18:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-60707"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-60707"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2025-60707-detection-script-eop-vulnerability-in-multimedia-class-scheduler-service-by-microsoft"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2025-60707-mitigation-script-eop-vulnerability-in-multimedia-class-scheduler-service-by-microsoft"
}
],
"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-QQPF-7VHQ-8PHW
Vulnerability from github – Published: 2022-08-24 00:00 – Updated: 2022-08-26 00:03
VLAI
Details
Use After Free in GitHub repository vim/vim prior to 9.0.0245.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-2946"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-23T17:15:00Z",
"severity": "HIGH"
},
"details": "Use After Free in GitHub repository vim/vim prior to 9.0.0245.",
"id": "GHSA-qqpf-7vhq-8phw",
"modified": "2022-08-26T00:03:36Z",
"published": "2022-08-24T00:00:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2946"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/adce965162dd89bf29ee0e5baf53652e7515762c"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/5d389a18-5026-47df-a5d0-1548a9b555d5"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C72HDIMR3KTTAO7QGTXWUMPBNFUFIBRD"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-16"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QQQJ-6RP2-5PW4
Vulnerability from github – Published: 2023-11-28 00:30 – Updated: 2025-11-03 21:30
VLAI
Details
A use-after-free vulnerability in BusyBox v.1.36.1 allows attackers to cause a denial of service via a crafted awk pattern in the awk.c evaluate function.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2023-42364"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-27T23:15:07Z",
"severity": "MODERATE"
},
"details": "A use-after-free vulnerability in BusyBox v.1.36.1 allows attackers to cause a denial of service via a crafted awk pattern in the awk.c evaluate function.",
"id": "GHSA-qqqj-6rp2-5pw4",
"modified": "2025-11-03T21:30:56Z",
"published": "2023-11-28T00:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42364"
},
{
"type": "WEB",
"url": "https://bugs.busybox.net/show_bug.cgi?id=15868"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00012.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QQR7-539F-FVM6
Vulnerability from github – Published: 2022-05-24 16:59 – Updated: 2022-05-24 16:59
VLAI
Details
Adobe Acrobat and Reader versions , 2019.012.20040 and earlier, 2017.011.30148 and earlier, 2017.011.30148 and earlier, 2015.006.30503 and earlier, and 2015.006.30503 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution .
{
"affected": [],
"aliases": [
"CVE-2019-8178"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-10-17T21:15:00Z",
"severity": "HIGH"
},
"details": "Adobe Acrobat and Reader versions , 2019.012.20040 and earlier, 2017.011.30148 and earlier, 2017.011.30148 and earlier, 2015.006.30503 and earlier, and 2015.006.30503 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution .",
"id": "GHSA-qqr7-539f-fvm6",
"modified": "2022-05-24T16:59:21Z",
"published": "2022-05-24T16:59:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8178"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb19-49.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-QQV6-XC9F-M5J9
Vulnerability from github – Published: 2022-05-24 17:48 – Updated: 2022-05-24 17:48
VLAI
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.
{
"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 17:05
VLAI
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 < 68.3, Firefox ESR < 68.3, and Firefox < 71.
Severity
7.5 (High)
{
"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 03:09
VLAI
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 < 52 and Thunderbird < 52.
Severity
9.8 (Critical)
{
"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 06:25
VLAI
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)
Severity
8.8 (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 01:48
VLAI
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.
Severity
8.8 (High)
{
"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"
}
]
}
Mitigation
Architecture and Design
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Implementation
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.