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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
10190 vulnerabilities reference this CWE, most recent first.
GHSA-9MX2-VH7F-423C
Vulnerability from github – Published: 2026-05-14 21:30 – Updated: 2026-05-14 21:30
VLAI
Details
Use after free in Tab Groups in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2026-8521"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-14T20:17:12Z",
"severity": "HIGH"
},
"details": "Use after free in Tab Groups in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)",
"id": "GHSA-9mx2-vh7f-423c",
"modified": "2026-05-14T21:30:44Z",
"published": "2026-05-14T21:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8521"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/504106200"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9P2M-63P4-HPV7
Vulnerability from github – Published: 2026-03-10 18:31 – Updated: 2026-03-10 18:31
VLAI
Details
Use after free in Windows Print Spooler Components allows an authorized attacker to execute code over a network.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-23669"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-10T18:18:15Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Print Spooler Components allows an authorized attacker to execute code over a network.",
"id": "GHSA-9p2m-63p4-hpv7",
"modified": "2026-03-10T18:31:19Z",
"published": "2026-03-10T18:31:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23669"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23669"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9P2M-7X3F-FH47
Vulnerability from github – Published: 2022-05-24 16:46 – Updated: 2022-10-12 19:00
VLAI
Details
Adobe Flash Player versions 32.0.0.156 and earlier, 32.0.0.156 and earlier, and 32.0.0.156 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2019-7096"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-05-23T17:29:00Z",
"severity": "CRITICAL"
},
"details": "Adobe Flash Player versions 32.0.0.156 and earlier, 32.0.0.156 and earlier, and 32.0.0.156 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution.",
"id": "GHSA-9p2m-7x3f-fh47",
"modified": "2022-10-12T19:00:37Z",
"published": "2022-05-24T16:46:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-7096"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/flash-player/apsb19-19.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201908-21"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9P33-FHFV-86GG
Vulnerability from github – Published: 2023-11-14 21:30 – Updated: 2023-11-14 21:30
VLAI
Details
Memory corruption in Audio when SSR event is triggered after music playback is stopped.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-33074"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-787"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-07T06:15:11Z",
"severity": "HIGH"
},
"details": "Memory corruption in Audio when SSR event is triggered after music playback is stopped.",
"id": "GHSA-9p33-fhfv-86gg",
"modified": "2023-11-14T21:30:53Z",
"published": "2023-11-14T21:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33074"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins/november-2023-bulletin"
}
],
"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-9P3C-X5JH-9P27
Vulnerability from github – Published: 2022-12-22 21:30 – Updated: 2025-04-15 15:30
VLAI
Details
The garbage collector could have been aborted in several states and zones and GCRuntime::finishCollection may not have been called, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-45409"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-22T20:15:00Z",
"severity": "HIGH"
},
"details": "The garbage collector could have been aborted in several states and zones and \u003ccode\u003eGCRuntime::finishCollection\u003c/code\u003e may not have been called, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox ESR \u003c 102.5, Thunderbird \u003c 102.5, and Firefox \u003c 107.",
"id": "GHSA-9p3c-x5jh-9p27",
"modified": "2025-04-15T15:30:35Z",
"published": "2022-12-22T21:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-45409"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1796901"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2022-47"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2022-48"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2022-49"
}
],
"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-9P4M-HWVX-P3P7
Vulnerability from github – Published: 2026-06-05 00:31 – Updated: 2026-06-05 15:32
VLAI
Details
Use after free in USB in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-11188"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-04T23:17:25Z",
"severity": "HIGH"
},
"details": "Use after free in USB in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-9p4m-hwvx-p3p7",
"modified": "2026-06-05T15:32:19Z",
"published": "2026-06-05T00:31:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11188"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/502959826"
}
],
"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-9P74-5F5X-RGFP
Vulnerability from github – Published: 2026-04-14 18:30 – Updated: 2026-04-14 18:30
VLAI
Details
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-32189"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-14T18:17:24Z",
"severity": "HIGH"
},
"details": "Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.",
"id": "GHSA-9p74-5f5x-rgfp",
"modified": "2026-04-14T18:30:41Z",
"published": "2026-04-14T18:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32189"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32189"
}
],
"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-9P7J-9995-M88W
Vulnerability from github – Published: 2026-06-04 03:30 – Updated: 2026-06-28 12:30
VLAI
Details
HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities.
The XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV's PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation.
The read may disclose adjacent heap contents into the destination SV.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2026-8829"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-04T03:16:20Z",
"severity": "HIGH"
},
"details": "HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities.\n\nThe XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV\u0027s PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation.\n\nThe read may disclose adjacent heap contents into the destination SV.",
"id": "GHSA-9p7j-9995-m88w",
"modified": "2026-06-28T12:30:27Z",
"published": "2026-06-04T03:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8829"
},
{
"type": "WEB",
"url": "https://github.com/libwww-perl/HTML-Parser/pull/56"
},
{
"type": "WEB",
"url": "https://github.com/libwww-perl/HTML-Parser/commit/6922552b0778c90a9587a3894e248be4d3a25e1c.patch"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2026/06/msg00044.html"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/06/04/2"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-9P8G-XC5V-Q956
Vulnerability from github – Published: 2025-01-14 18:32 – Updated: 2025-01-14 18:32
VLAI
Details
Microsoft Brokering File System Elevation of Privilege Vulnerability
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2025-21372"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-14T18:16:02Z",
"severity": "HIGH"
},
"details": "Microsoft Brokering File System Elevation of Privilege Vulnerability",
"id": "GHSA-9p8g-xc5v-q956",
"modified": "2025-01-14T18:32:05Z",
"published": "2025-01-14T18:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21372"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21372"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9PCF-JG3J-PW83
Vulnerability from github – Published: 2022-05-24 19:12 – Updated: 2022-05-24 19:12
VLAI
Details
Use after free in Media in Google Chrome prior to 93.0.4577.63 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2021-30616"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-03T20:15:00Z",
"severity": "HIGH"
},
"details": "Use after free in Media in Google Chrome prior to 93.0.4577.63 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-9pcf-jg3j-pw83",
"modified": "2022-05-24T19:12:58Z",
"published": "2022-05-24T19:12:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30616"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2021/08/stable-channel-update-for-desktop_31.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1231432"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5LVY4WIWTVVYKQMROJJS365TZBKEARCF"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IPJPUSAWIJMQFBQQQYXAICLI4EKFQOH6"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QW4R2K5HVJ4R6XDZYOJCCFPIN2XHNS3L"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30616"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.