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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

9906 vulnerabilities reference this CWE, most recent first.

GHSA-8P74-H597-P9V6

Vulnerability from github – Published: 2022-05-12 00:00 – Updated: 2022-05-12 00:00
VLAI
Details

Acrobat Reader DC versions 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (and earlier) are affected by a use-after-free vulnerability in the processing of the acroform event that could result in 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.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-27796"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-05-11T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "Acrobat Reader DC versions 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (and earlier) are affected by a use-after-free vulnerability in the processing of the acroform event that could result in 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-8p74-h597-p9v6",
  "modified": "2022-05-12T00:00:41Z",
  "published": "2022-05-12T00:00:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27796"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/acrobat/apsb22-16.html"
    }
  ],
  "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-8P7H-VJM2-XPWW

Vulnerability from github – Published: 2022-05-17 01:10 – Updated: 2025-04-12 12:57
VLAI
Details

Use-after-free vulnerability in Adobe Flash Player before 18.0.0.333 and 19.x through 21.x before 21.0.0.182 on Windows and OS X and before 11.2.202.577 on Linux, Adobe AIR before 21.0.0.176, Adobe AIR SDK before 21.0.0.176, and Adobe AIR SDK & Compiler before 21.0.0.176 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-0987, CVE-2016-0988, CVE-2016-0990, CVE-2016-0991, CVE-2016-0994, CVE-2016-0995, CVE-2016-0996, CVE-2016-0998, CVE-2016-0999, and CVE-2016-1000.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2016-0997"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-03-12T15:59:00Z",
    "severity": "CRITICAL"
  },
  "details": "Use-after-free vulnerability in Adobe Flash Player before 18.0.0.333 and 19.x through 21.x before 21.0.0.182 on Windows and OS X and before 11.2.202.577 on Linux, Adobe AIR before 21.0.0.176, Adobe AIR SDK before 21.0.0.176, and Adobe AIR SDK \u0026 Compiler before 21.0.0.176 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-0987, CVE-2016-0988, CVE-2016-0990, CVE-2016-0991, CVE-2016-0994, CVE-2016-0995, CVE-2016-0996, CVE-2016-0998, CVE-2016-0999, and CVE-2016-1000.",
  "id": "GHSA-8p7h-vjm2-xpww",
  "modified": "2025-04-12T12:57:42Z",
  "published": "2022-05-17T01:10:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-0997"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/flash-player/apsb16-08.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201603-07"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/39613"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00022.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00023.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00024.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00032.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/84312"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1035251"
    }
  ],
  "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-8P9P-333G-F2CC

Vulnerability from github – Published: 2022-05-24 19:12 – Updated: 2022-05-24 19:12
VLAI
Details

Use after free in Bookmarks in Google Chrome prior to 93.0.4577.63 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2021-30623"
  ],
  "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 Bookmarks in Google Chrome prior to 93.0.4577.63 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.",
  "id": "GHSA-8p9p-333g-f2cc",
  "modified": "2022-05-24T19:12:57Z",
  "published": "2022-05-24T19:12:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30623"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2021/08/stable-channel-update-for-desktop_31.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/1223667"
    },
    {
      "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-2021-30623"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-8P9R-XRM6-68WQ

Vulnerability from github – Published: 2022-05-24 19:06 – Updated: 2025-11-04 00:30
VLAI
Details

The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __cil_verify_classpermission and __cil_pre_verify_helper).

Severity
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2021-36084"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-07-01T03:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __cil_verify_classpermission and __cil_pre_verify_helper).",
  "id": "GHSA-8p9r-xrm6-68wq",
  "modified": "2025-11-04T00:30:29Z",
  "published": "2022-05-24T19:06:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36084"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SELinuxProject/selinux/commit/f34d3d30c8325e4847a6b696fe7a3936a8a361f3"
    },
    {
      "type": "WEB",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31065"
    },
    {
      "type": "WEB",
      "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-417.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00021.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20250207-0004"
    }
  ],
  "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:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8PC7-J27M-5M6C

Vulnerability from github – Published: 2023-07-19 15:30 – Updated: 2024-04-04 06:17
VLAI
Details

A use-after-free vulnerability exists in the way Foxit Reader 12.1.2.15332 handles destroying annotations. A specially-crafted Javascript code inside a malicious PDF document can trigger reuse of a previously freed object which can lead to memory corruption and result in arbitrary code execution. A specially-crafted Javascript code inside a malicious PDF document can cause memory corruption and lead to remote code execution. Exploitation is also possible if a user visits a specially-crafted, malicious site if the browser plugin extension is enabled.

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
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-33876"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-07-19T14:15:10Z",
    "severity": "HIGH"
  },
  "details": "A use-after-free vulnerability exists in the way Foxit Reader 12.1.2.15332 handles destroying annotations. A specially-crafted Javascript code inside a malicious PDF document can trigger reuse of a previously freed object which can lead to memory corruption and result in arbitrary code execution. A specially-crafted Javascript code inside a malicious PDF document can cause memory corruption and lead to remote code execution. Exploitation is also possible if a user visits a specially-crafted, malicious site if the browser plugin extension is enabled.",
  "id": "GHSA-8pc7-j27m-5m6c",
  "modified": "2024-04-04T06:17:00Z",
  "published": "2023-07-19T15:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33876"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1796"
    },
    {
      "type": "WEB",
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1796"
    }
  ],
  "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-8PF4-F4W9-6H78

Vulnerability from github – Published: 2022-09-27 00:00 – Updated: 2025-05-21 21:31
VLAI
Details

Use after free in Layout in Google Chrome prior to 105.0.5195.52 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

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
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-3040"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-26T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Layout in Google Chrome prior to 105.0.5195.52 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
  "id": "GHSA-8pf4-f4w9-6h78",
  "modified": "2025-05-21T21:31:08Z",
  "published": "2022-09-27T00:00:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3040"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2022/08/stable-channel-update-for-desktop_30.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/1341539"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4NMJURTG5RO3TGD7ZMIQ6Z4ZZ3SAVYE"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T4NMJURTG5RO3TGD7ZMIQ6Z4ZZ3SAVYE"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202209-23"
    }
  ],
  "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-8PF6-658F-7QH2

Vulnerability from github – Published: 2022-05-24 17:38 – Updated: 2022-05-24 17:38
VLAI
Details

A use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2020-27835"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-01-07T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.",
  "id": "GHSA-8pf6-658f-7qh2",
  "modified": "2022-05-24T17:38:13Z",
  "published": "2022-05-24T17:38:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27835"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1901709"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-8PJV-GQ7V-V29G

Vulnerability from github – Published: 2022-05-13 01:33 – Updated: 2022-05-13 01:33
VLAI
Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of the editValue property of a TimeField. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-6480.

Severity
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2018-17643"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-01-24T04:29:00Z",
    "severity": "HIGH"
  },
  "details": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.2.0.9297. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of the editValue property of a TimeField. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-6480.",
  "id": "GHSA-8pjv-gq7v-v29g",
  "modified": "2022-05-13T01:33:58Z",
  "published": "2022-05-13T01:33:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17643"
    },
    {
      "type": "WEB",
      "url": "https://www.foxitsoftware.com/support/security-bulletins.php"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-18-1229"
    }
  ],
  "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-8PP3-V6HQ-WC9F

Vulnerability from github – Published: 2026-03-10 18:31 – Updated: 2026-03-10 18:31
VLAI
Details

Use after free in Broadcast DVR allows an authorized attacker to elevate privileges locally.

Severity
7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-23667"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-10T18:18:14Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Broadcast DVR allows an authorized attacker to elevate privileges locally.",
  "id": "GHSA-8pp3-v6hq-wc9f",
  "modified": "2026-03-10T18:31:19Z",
  "published": "2026-03-10T18:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23667"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23667"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8PPM-2M96-GMG5

Vulnerability from github – Published: 2022-05-13 01:25 – Updated: 2022-05-13 01:25
VLAI
Details

An issue was discovered in the Linux kernel through 4.17.10. There is a use-after-free in try_merge_free_space() when mounting a crafted btrfs image, because of a lack of chunk type flag checks in btrfs_check_chunk_valid in fs/btrfs/volumes.c.

Severity
5.5 (Medium)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2018-14611"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-07-27T04:29:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in the Linux kernel through 4.17.10. There is a use-after-free in try_merge_free_space() when mounting a crafted btrfs image, because of a lack of chunk type flag checks in btrfs_check_chunk_valid in fs/btrfs/volumes.c.",
  "id": "GHSA-8ppm-2m96-gmg5",
  "modified": "2022-05-13T01:25:50Z",
  "published": "2022-05-13T01:25:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-14611"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199839"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html"
    },
    {
      "type": "WEB",
      "url": "https://patchwork.kernel.org/patch/10503099"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3932-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3932-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4094-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4118-1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/104917"
    }
  ],
  "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"
    }
  ]
}
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.

← Back to the CWE list