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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9906 vulnerabilities reference this CWE, most recent first.
GHSA-MQ95-27MR-XGRH
Vulnerability from github – Published: 2022-04-15 00:00 – Updated: 2024-05-02 00:30
VLAI
Details
MariaDB Server v10.6.3 and below was discovered to contain an use-after-free in the component Binary_string::free_buffer() at /sql/sql_string.h.
Severity
7.5 (High)
{
"affected": [],
"aliases": [
"CVE-2022-27458"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-14T13:15:00Z",
"severity": "HIGH"
},
"details": "MariaDB Server v10.6.3 and below was discovered to contain an use-after-free in the component Binary_string::free_buffer() at /sql/sql_string.h.",
"id": "GHSA-mq95-27mr-xgrh",
"modified": "2024-05-02T00:30:47Z",
"published": "2022-04-15T00:00:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27458"
},
{
"type": "WEB",
"url": "https://jira.mariadb.org/browse/MDEV-28099"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00023.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220526-0007"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MQ98-F72Q-HFX8
Vulnerability from github – Published: 2022-05-24 19:13 – Updated: 2022-05-24 19:13
VLAI
Details
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7. Processing maliciously crafted web content may lead to arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2021-30795"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-08T14:15:00Z",
"severity": "HIGH"
},
"details": "A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7. Processing maliciously crafted web content may lead to arbitrary code execution.",
"id": "GHSA-mq98-f72q-hfx8",
"modified": "2022-05-24T19:13:42Z",
"published": "2022-05-24T19:13:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30795"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212601"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212602"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212604"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212605"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT212606"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-MQF6-PG39-X737
Vulnerability from github – Published: 2026-03-12 00:31 – Updated: 2026-03-12 15:30
VLAI
Details
Use after free in Extensions in Google Chrome prior to 146.0.7680.71 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2026-3919"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-11T22:16:34Z",
"severity": "HIGH"
},
"details": "Use after free in Extensions in Google Chrome prior to 146.0.7680.71 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-mqf6-pg39-x737",
"modified": "2026-03-12T15:30:24Z",
"published": "2026-03-12T00:31:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3919"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_10.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/444176961"
}
],
"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-MQF6-RPJP-V4FC
Vulnerability from github – Published: 2022-05-24 19:12 – Updated: 2022-05-24 19:12
VLAI
Details
Acrobat Reader DC versions versions 2021.001.20155 (and earlier), 2020.001.30025 (and earlier) and 2017.011.30196 (and earlier) are affected by an Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2021-28631"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-08-24T18:15:00Z",
"severity": "HIGH"
},
"details": "Acrobat Reader DC versions versions 2021.001.20155 (and earlier), 2020.001.30025 (and earlier) and 2017.011.30196 (and earlier) are affected by an Use After Free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-mqf6-rpjp-v4fc",
"modified": "2022-05-24T19:12:00Z",
"published": "2022-05-24T19:12:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28631"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb21-37.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-MQFM-R5W2-P74J
Vulnerability from github – Published: 2022-05-14 02:08 – Updated: 2025-04-12 13:04
VLAI
Details
Use-after-free vulnerability in the pdf_load_xref function in pdf/pdf-xref.c in MuPDF allows remote attackers to cause a denial of service (crash) via a crafted PDF file.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2016-6265"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-09-22T15:59:00Z",
"severity": "MODERATE"
},
"details": "Use-after-free vulnerability in the pdf_load_xref function in pdf/pdf-xref.c in MuPDF allows remote attackers to cause a denial of service (crash) via a crafted PDF file.",
"id": "GHSA-mqfm-r5w2-p74j",
"modified": "2025-04-12T13:04:30Z",
"published": "2022-05-14T02:08:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-6265"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201702-12"
},
{
"type": "WEB",
"url": "http://bugs.ghostscript.com/show_bug.cgi?id=696941"
},
{
"type": "WEB",
"url": "http://git.ghostscript.com/?p=mupdf.git%3Bh=fa1936405b6a84e5c9bb440912c23d532772f958"
},
{
"type": "WEB",
"url": "http://git.ghostscript.com/?p=mupdf.git;h=fa1936405b6a84e5c9bb440912c23d532772f958"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-updates/2016-08/msg00007.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3655"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/07/21/7"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/92071"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MQHH-V6V6-3XX3
Vulnerability from github – Published: 2025-08-12 18:31 – Updated: 2025-08-12 18:31
VLAI
Details
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
Severity
8.4 (High)
{
"affected": [],
"aliases": [
"CVE-2025-53731"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-12T18:15:42Z",
"severity": "HIGH"
},
"details": "Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.",
"id": "GHSA-mqhh-v6v6-3xx3",
"modified": "2025-08-12T18:31:32Z",
"published": "2025-08-12T18:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-53731"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53731"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MQMX-58XM-F4CJ
Vulnerability from github – Published: 2022-04-13 00:00 – Updated: 2022-04-19 00:01
VLAI
Details
In ion_ioctl of ion-ioctl.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-209791720References: Upstream kernel
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2021-39801"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-12T17:15:00Z",
"severity": "HIGH"
},
"details": "In ion_ioctl of ion-ioctl.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-209791720References: Upstream kernel",
"id": "GHSA-mqmx-58xm-f4cj",
"modified": "2022-04-19T00:01:07Z",
"published": "2022-04-13T00:00:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39801"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2022-04-01"
}
],
"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-MQQ9-XCHH-H97Q
Vulnerability from github – Published: 2022-05-24 17:44 – Updated: 2022-05-24 17:44
VLAI
Details
A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.
{
"affected": [],
"aliases": [
"CVE-2021-20231"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-03-12T19:15:00Z",
"severity": "CRITICAL"
},
"details": "A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.",
"id": "GHSA-mqq9-xchh-h97q",
"modified": "2022-05-24T17:44:28Z",
"published": "2022-05-24T17:44:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20231"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922276"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r50661d6f0082709aad9a584431b59ec364f9974b63b07e0800230168@%3Cissues.spark.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r5d4001031e7790d8c6396c499522b4ed2aab782da87b1a14184793bb@%3Cissues.spark.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r5f88bed447742fcc5c47bf1c7be965ef450131914a6e1f85feba2779@%3Cissues.spark.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r6ac143ba6dd98bd4bf6bf010d46e56e254056459721ba18822d611f7@%3Cissues.spark.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/r9cbc69e57276413788e90a6ee16c7c034ea4258d31935b70db2bd158@%3Cissues.spark.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rcd70a4c88a47a75fd2d5f3ffb7cee8c2a18c713320bd90fdcb57495f@%3Cissues.spark.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rf5e1256d870193def4a82ad89ab95e63943a313b5ff0d81aa87e4532@%3Cissues.spark.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.apache.org/thread.html/rfd5273d72d244178441e6904a2f2b41a3268f569e8092ea0b3b2bb20@%3Cissues.spark.apache.org%3E"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OSLAE6PP33A7VYRYMYMUVB3U6B26GZER"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20210416-0005"
},
{
"type": "WEB",
"url": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2021-03-10"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-MQR3-MXFG-8RW7
Vulnerability from github – Published: 2024-03-28 18:30 – Updated: 2025-11-04 21:31
VLAI
Details
A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.6.3, macOS Sonoma 14.2, macOS Monterey 12.7.2. A local attacker may be able to elevate their privileges.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2023-42892"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-28T16:15:07Z",
"severity": "HIGH"
},
"details": "A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.6.3, macOS Sonoma 14.2, macOS Monterey 12.7.2. A local attacker may be able to elevate their privileges.",
"id": "GHSA-mqr3-mxfg-8rw7",
"modified": "2025-11-04T21:31:23Z",
"published": "2024-03-28T18:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42892"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT214036"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT214037"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/HT214038"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT214036"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT214037"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT214038"
}
],
"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-MQVX-34Q7-6MC7
Vulnerability from github – Published: 2023-01-05 15:30 – Updated: 2023-01-11 21:30
VLAI
Details
GPAC MP4box 2.1-DEV-rev574-g9d5bb184b is vulnerable to heap use-after-free via filters/dmx_m2ts.c:470 in m2tsdmx_declare_pid
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-47093"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-05T15:15:00Z",
"severity": "HIGH"
},
"details": "GPAC MP4box 2.1-DEV-rev574-g9d5bb184b is vulnerable to heap use-after-free via filters/dmx_m2ts.c:470 in m2tsdmx_declare_pid",
"id": "GHSA-mqvx-34q7-6mc7",
"modified": "2023-01-11T21:30:42Z",
"published": "2023-01-05T15:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-47093"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/2344"
}
],
"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"
}
]
}
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.