Common Weakness Enumeration

CWE-416

Allowed

Use After Free

Abstraction: Variant · Status: Stable

API response cwe.mitre.org

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

12540 vulnerabilities reference this CWE, most recent first.

GHSA-MQ8H-F329-FXX2

Vulnerability from github – Published: 2025-02-24 09:35 – Updated: 2025-11-03 21:32
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

IORING_OP_READ did not correctly consume the provided buffer list when read i/o returned < 0 (except for -EAGAIN and -EIOCBQUEUED return). This can lead to a potential use-after-free when the completion via io_rw_done runs at separate context.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2023-52926"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-24T09:15:09Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nIORING_OP_READ did not correctly consume the provided buffer list when\nread i/o returned \u003c 0 (except for -EAGAIN and -EIOCBQUEUED return).\nThis can lead to a potential use-after-free when the completion via\nio_rw_done runs at separate context.",
  "id": "GHSA-mq8h-f329-fxx2",
  "modified": "2025-11-03T21:32:52Z",
  "published": "2025-02-24T09:35:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52926"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c27fc6a783c8a77c756dd5461b15e465020d075"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72060434a14caea20925e492310d6e680e3f9007"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a08d195b586a217d76b42062f88f375a3eedda4d"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
    }
  ],
  "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-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)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "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.

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{
  "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-MQCV-532F-GP47

Vulnerability from github – Published: 2026-09-28 21:31 – Updated: 2026-09-30 18:33
VLAI
Details

In moxygen before commit 004123dd24c3, MoQSession::dataStreamReadLoop keeps using a stream read handle after reading a FIN, which invalidates the handle under proxygen's WebTransport API. A remote peer can trigger the stale use by opening a data stream that names an unknown track alias and carries the FIN in the same write.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-84894"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-28T19:16:50Z",
    "severity": "HIGH"
  },
  "details": "In moxygen before commit 004123dd24c3, MoQSession::dataStreamReadLoop keeps using a stream read handle after reading a FIN, which invalidates the handle under proxygen\u0027s WebTransport API. A remote peer can trigger the stale use by opening a data stream that names an unknown track alias and carries the FIN in the same write.",
  "id": "GHSA-mqcv-532f-gp47",
  "modified": "2026-09-30T18:33:06Z",
  "published": "2026-09-28T21:31:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84894"
    },
    {
      "type": "WEB",
      "url": "https://github.com/facebookexperimental/moxygen/commit/004123dd24c30dad6b649163575145f240dabc94"
    },
    {
      "type": "WEB",
      "url": "https://www.facebook.com/security/advisories/cve-2026-84894"
    }
  ],
  "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-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)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Show details on source website
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{
  "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.

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{
  "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)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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{
  "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)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "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)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "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: 2026-10-14 12:31
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.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "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": "2026-10-14T12:31:18Z",
  "published": "2022-05-24T17:44:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20231"
    },
    {
      "type": "WEB",
      "url": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2021-03-10"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210416-0005"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OSLAE6PP33A7VYRYMYMUVB3U6B26GZER"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OSLAE6PP33A7VYRYMYMUVB3U6B26GZER"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rfd5273d72d244178441e6904a2f2b41a3268f569e8092ea0b3b2bb20@%3Cissues.spark.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rfd5273d72d244178441e6904a2f2b41a3268f569e8092ea0b3b2bb20%40%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/rf5e1256d870193def4a82ad89ab95e63943a313b5ff0d81aa87e4532%40%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/rcd70a4c88a47a75fd2d5f3ffb7cee8c2a18c713320bd90fdcb57495f%40%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/r9cbc69e57276413788e90a6ee16c7c034ea4258d31935b70db2bd158%40%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/r6ac143ba6dd98bd4bf6bf010d46e56e254056459721ba18822d611f7%40%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/r5f88bed447742fcc5c47bf1c7be965ef450131914a6e1f85feba2779%40%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/r5d4001031e7790d8c6396c499522b4ed2aab782da87b1a14184793bb%40%3Cissues.spark.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r50661d6f0082709aad9a584431b59ec364f9974b63b07e0800230168@%3Cissues.spark.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r50661d6f0082709aad9a584431b59ec364f9974b63b07e0800230168%40%3Cissues.spark.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-398330.html"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922276"
    }
  ],
  "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"
    }
  ]
}
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.

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