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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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-QFF9-CFRR-C89X
Vulnerability from github – Published: 2022-05-14 01:01 – Updated: 2022-05-14 01:01
VLAI
Details
Adobe Flash Player versions 23.0.0.205 and earlier, 11.2.202.643 and earlier have an exploitable use-after-free vulnerability. Successful exploitation could lead to arbitrary code execution.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2016-7863"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-11-08T17:59:00Z",
"severity": "HIGH"
},
"details": "Adobe Flash Player versions 23.0.0.205 and earlier, 11.2.202.643 and earlier have an exploitable use-after-free vulnerability. Successful exploitation could lead to arbitrary code execution.",
"id": "GHSA-qff9-cfrr-c89x",
"modified": "2022-05-14T01:01:38Z",
"published": "2022-05-14T01:01:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-7863"
},
{
"type": "WEB",
"url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-141"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/flash-player/apsb16-37.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201611-18"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2016-2676.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/94153"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1037240"
},
{
"type": "WEB",
"url": "http://www.zerodayinitiative.com/advisories/ZDI-16-599"
}
],
"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-QFFG-F4F5-J77V
Vulnerability from github – Published: 2022-01-30 00:00 – Updated: 2022-04-02 00:00
VLAI
Details
kernel/ucount.c in the Linux kernel 5.14 through 5.16.4, when unprivileged user namespaces are enabled, allows a use-after-free and privilege escalation because a ucounts object can outlive its namespace.
Severity
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2022-24122"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-29T22:15:00Z",
"severity": "HIGH"
},
"details": "kernel/ucount.c in the Linux kernel 5.14 through 5.16.4, when unprivileged user namespaces are enabled, allows a use-after-free and privilege escalation because a ucounts object can outlive its namespace.",
"id": "GHSA-qffg-f4f5-j77v",
"modified": "2022-04-02T00:00:46Z",
"published": "2022-01-30T00:00:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24122"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/f9d87929d451d3e649699d0f1d74f71f77ad38f5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9d87929d451d3e649699d0f1d74f71f77ad38f5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSR3AI2IQGRKZCHNKF6S25JGDKUEAWWL"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVSZKUJAZ2VN6LJ35J2B6YD6BOPQTU3B"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HSR3AI2IQGRKZCHNKF6S25JGDKUEAWWL"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VVSZKUJAZ2VN6LJ35J2B6YD6BOPQTU3B"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20220221-0001"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2022/01/29/1"
}
],
"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-QFH8-X72V-WHWP
Vulnerability from github – Published: 2022-02-08 00:00 – Updated: 2022-03-31 00:00
VLAI
{
"affected": [],
"aliases": [
"CVE-2022-0443"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-02-02T21:15:00Z",
"severity": "CRITICAL"
},
"details": "Use After Free in Conda vim prior to 8.2.",
"id": "GHSA-qfh8-x72v-whwp",
"modified": "2022-03-31T00:00:57Z",
"published": "2022-02-08T00:00:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0443"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/9b4a80a66544f2782040b641498754bcb5b8d461"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/b987c8cb-bbbe-4601-8a6c-54ff907c6b51"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00022.html"
},
{
"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/7ZLEHVP4LNAGER4ZDGUDS5V5YVQD6INF"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UFXFAILMLUIK4MBUEZO4HNBNKYZRJ5AP"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-32"
}
],
"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-QFHP-X82V-PPCM
Vulnerability from github – Published: 2026-06-09 00:33 – Updated: 2026-06-09 03:31
VLAI
Details
Use after free in Bluetooth in Google Chrome on Mac prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
Severity
8.3 (High)
{
"affected": [],
"aliases": [
"CVE-2026-11635"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T00:16:46Z",
"severity": "HIGH"
},
"details": "Use after free in Bluetooth in Google Chrome on Mac prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)",
"id": "GHSA-qfhp-x82v-ppcm",
"modified": "2026-06-09T03:31:39Z",
"published": "2026-06-09T00:33:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11635"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/516987814"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QFJC-PJ3Q-QMPF
Vulnerability from github – Published: 2022-05-24 19:03 – Updated: 2022-08-16 00:00
VLAI
Details
A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the 'Information Transfer' command (CMD_TI). This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service or potential code execution with the privileges of the QEMU process.
Severity
6.7 (Medium)
{
"affected": [],
"aliases": [
"CVE-2020-35506"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-05-28T11:15:00Z",
"severity": "MODERATE"
},
"details": "A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the \u0027Information Transfer\u0027 command (CMD_TI). This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service or potential code execution with the privileges of the QEMU process.",
"id": "GHSA-qfjc-pj3q-qmpf",
"modified": "2022-08-16T00:00:44Z",
"published": "2022-05-24T19:03:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35506"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1909996"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-27"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20210713-0006"
},
{
"type": "WEB",
"url": "https://www.openwall.com/lists/oss-security/2021/04/16/3"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2021/04/16/3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-QFJV-J5F5-WV79
Vulnerability from github – Published: 2022-05-24 17:22 – Updated: 2023-01-27 18:30
VLAI
Details
When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2020-12419"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-07-09T15:15:00Z",
"severity": "HIGH"
},
"details": "When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR \u003c 68.10, Firefox \u003c 78, and Thunderbird \u003c 68.10.0.",
"id": "GHSA-qfjv-j5f5-wv79",
"modified": "2023-01-27T18:30:32Z",
"published": "2022-05-24T17:22:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-12419"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1643874"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-09"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202007-10"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4421-1"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2020-24"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2020-25"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2020-26"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.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-QFMG-9M9F-P46Q
Vulnerability from github – Published: 2022-05-14 03:56 – Updated: 2025-04-12 13:02
VLAI
Details
ext/snmp/snmp.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via crafted serialized data, a related issue to CVE-2016-5773.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2016-6295"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2016-07-25T14:59:00Z",
"severity": "CRITICAL"
},
"details": "ext/snmp/snmp.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via crafted serialized data, a related issue to CVE-2016-5773.",
"id": "GHSA-qfmg-9m9f-p46q",
"modified": "2025-04-12T13:02:53Z",
"published": "2022-05-14T03:56:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-6295"
},
{
"type": "WEB",
"url": "https://bugs.php.net/72479"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201611-22"
},
{
"type": "WEB",
"url": "https://support.apple.com/HT207170"
},
{
"type": "WEB",
"url": "http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=cab1c3b3708eead315e033359d07049b23b147a3"
},
{
"type": "WEB",
"url": "http://git.php.net/?p=php-src.git;a=commit;h=cab1c3b3708eead315e033359d07049b23b147a3"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html"
},
{
"type": "WEB",
"url": "http://openwall.com/lists/oss-security/2016/07/24/2"
},
{
"type": "WEB",
"url": "http://php.net/ChangeLog-5.php"
},
{
"type": "WEB",
"url": "http://php.net/ChangeLog-7.php"
},
{
"type": "WEB",
"url": "http://rhn.redhat.com/errata/RHSA-2016-2750.html"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3631"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/92094"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1036430"
}
],
"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-QFQG-FWPJ-F3C6
Vulnerability from github – Published: 2022-05-24 19:04 – Updated: 2022-05-24 19:04
VLAI
Details
In memory management driver, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-183461320
{
"affected": [],
"aliases": [
"CVE-2021-0497"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-06-11T17:15:00Z",
"severity": "HIGH"
},
"details": "In memory management driver, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android SoCAndroid ID: A-183461320",
"id": "GHSA-qfqg-fwpj-f3c6",
"modified": "2022-05-24T19:04:58Z",
"published": "2022-05-24T19:04:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0497"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2021-05-01"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-QFR3-FJJR-8QJM
Vulnerability from github – Published: 2022-05-14 00:52 – Updated: 2022-05-14 00:52
VLAI
Details
Adobe Acrobat and Reader versions 2019.008.20081 and earlier, 2019.008.20080 and earlier, 2019.008.20081 and earlier, 2017.011.30106 and earlier version, 2017.011.30105 and earlier version, 2015.006.30457 and earlier, and 2015.006.30456 and earlier have a use after free vulnerability. Successful exploitation could lead to arbitrary code execution.
Severity
8.8 (High)
{
"affected": [],
"aliases": [
"CVE-2018-16026"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-01-18T17:29:00Z",
"severity": "HIGH"
},
"details": "Adobe Acrobat and Reader versions 2019.008.20081 and earlier, 2019.008.20080 and earlier, 2019.008.20081 and earlier, 2017.011.30106 and earlier version, 2017.011.30105 and earlier version, 2015.006.30457 and earlier, and 2015.006.30456 and earlier have a use after free vulnerability. Successful exploitation could lead to arbitrary code execution.",
"id": "GHSA-qfr3-fjjr-8qjm",
"modified": "2022-05-14T00:52:22Z",
"published": "2022-05-14T00:52:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16026"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb18-41.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106164"
}
],
"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-QFR5-98GW-PMCJ
Vulnerability from github – Published: 2025-05-13 00:31 – Updated: 2025-11-03 21:33
VLAI
Details
A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 11.5, macOS Sonoma 14.7.6, tvOS 18.5, iPadOS 17.7.7, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, visionOS 2.5, macOS Ventura 13.7.6. Parsing a file may lead to an unexpected app termination.
Severity
{
"affected": [],
"aliases": [
"CVE-2025-31239"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-12T22:15:24Z",
"severity": "LOW"
},
"details": "A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 11.5, macOS Sonoma 14.7.6, tvOS 18.5, iPadOS 17.7.7, iOS 18.5 and iPadOS 18.5, macOS Sequoia 15.5, visionOS 2.5, macOS Ventura 13.7.6. Parsing a file may lead to an unexpected app termination.",
"id": "GHSA-qfr5-98gw-pmcj",
"modified": "2025-11-03T21:33:53Z",
"published": "2025-05-13T00:31:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-31239"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122404"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122405"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122716"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122717"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122718"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122720"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122721"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/122722"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/May/11"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/May/12"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/May/5"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/May/6"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/May/7"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/May/8"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/May/9"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"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.