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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

9870 vulnerabilities reference this CWE, most recent first.

GHSA-CFW9-4M3H-GP62

Vulnerability from github – Published: 2022-09-23 00:00 – Updated: 2022-09-25 00:00
VLAI
Details

Use After Free in GitHub repository vim/vim prior to 9.0.0530.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2022-3256"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-22T13:15:00Z",
    "severity": "HIGH"
  },
  "details": "Use After Free in GitHub repository vim/vim prior to 9.0.0530.",
  "id": "GHSA-cfw9-4m3h-gp62",
  "modified": "2022-09-25T00:00:19Z",
  "published": "2022-09-23T00:00:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3256"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vim/vim/commit/8ecfa2c56b4992c7f067b92488aa9acea5a454ad"
    },
    {
      "type": "WEB",
      "url": "https://huntr.dev/bounties/8336a3df-212a-4f8d-ae34-76ef1f936bb3"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00032.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4QI7AETXBHPC7SGA77Q7O5IEGULWYET7"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GTBVD4J2SKVSWK4VBN5JP5OEVK6GDS3N"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LSSEWQLK55MCNT4Z2IIJEJYEI5HLCODI"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202305-16"
    }
  ],
  "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-CFW9-X6X8-WJGW

Vulnerability from github – Published: 2025-08-07 03:30 – Updated: 2025-08-07 15:33
VLAI
Details

Use after free in Cast in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

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-2025-8578"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-07T02:15:27Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Cast in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)",
  "id": "GHSA-cfw9-x6x8-wjgw",
  "modified": "2025-08-07T15:33:13Z",
  "published": "2025-08-07T03:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8578"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2025/08/stable-channel-update-for-desktop.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/423387026"
    }
  ],
  "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-CG2G-27WJ-X8X6

Vulnerability from github – Published: 2022-05-24 19:18 – Updated: 2023-08-16 18:30
VLAI
Details

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2021-40125"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-27T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.",
  "id": "GHSA-cg2g-27wj-x8x6",
  "modified": "2023-08-16T18:30:20Z",
  "published": "2022-05-24T19:18:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-40125"
    },
    {
      "type": "WEB",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CG2X-F9QQ-R586

Vulnerability from github – Published: 2022-05-24 17:29 – Updated: 2022-05-24 17:29
VLAI
Details

Use after free in offscreen canvas in Google Chrome prior to 85.0.4183.102 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2020-6576"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-09-21T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "Use after free in offscreen canvas in Google Chrome prior to 85.0.4183.102 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
  "id": "GHSA-cg2x-f9qq-r586",
  "modified": "2022-05-24T17:29:11Z",
  "published": "2022-05-24T17:29:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6576"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2020/09/stable-channel-update-for-desktop.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/1111737"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FN7HZIGAOCZKBT4LV363BCPRA5FLY25I"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNIYFJST4TFJYFZ27VODBOINCLBGULTD"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202101-30"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4824"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00072.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00078.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00081.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00049.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-CG39-R375-5F83

Vulnerability from github – Published: 2022-01-15 00:01 – Updated: 2022-01-16 00:00
VLAI
Details

In ipcSetDataReference of Parcel.cpp, there is a possible way to corrupt memory 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-11 Android-12Android ID: A-203847542

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{
  "affected": [],
  "aliases": [
    "CVE-2021-39620"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-01-14T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "In ipcSetDataReference of Parcel.cpp, there is a possible way to corrupt memory 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-11 Android-12Android ID: A-203847542",
  "id": "GHSA-cg39-r375-5f83",
  "modified": "2022-01-16T00:00:53Z",
  "published": "2022-01-15T00:01:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39620"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/2022-01-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-CG64-J5P6-4XRQ

Vulnerability from github – Published: 2026-05-14 21:30 – Updated: 2026-05-15 00:30
VLAI
Details

Use after free in Aura in Google Chrome prior to 148.0.7778.168 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)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-8514"
  ],
  "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 Aura in Google Chrome prior to 148.0.7778.168 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-cg64-j5p6-4xrq",
  "modified": "2026-05-15T00:30:29Z",
  "published": "2026-05-14T21:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8514"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/495948109"
    }
  ],
  "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-CG66-GRWX-RPHR

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
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
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{
  "affected": [],
  "aliases": [
    "CVE-2018-16040"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-01-18T17:29:00Z",
    "severity": "CRITICAL"
  },
  "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-cg66-grwx-rphr",
  "modified": "2022-05-14T00:52:30Z",
  "published": "2022-05-14T00:52:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-16040"
    },
    {
      "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:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CG86-M5XC-JQRM

Vulnerability from github – Published: 2025-02-18 15:31 – Updated: 2025-11-03 21:32
VLAI
Details

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

netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()

qdisc_tree_reduce_backlog() notifies parent qdisc only if child qdisc becomes empty, therefore we need to reduce the backlog of the child qdisc before calling it. Otherwise it would miss the opportunity to call cops->qlen_notify(), in the case of DRR, it resulted in UAF since DRR uses ->qlen_notify() to maintain its active list.

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
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{
  "affected": [],
  "aliases": [
    "CVE-2025-21703"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-18T15:15:18Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetem: Update sch-\u003eq.qlen before qdisc_tree_reduce_backlog()\n\nqdisc_tree_reduce_backlog() notifies parent qdisc only if child\nqdisc becomes empty, therefore we need to reduce the backlog of the\nchild qdisc before calling it. Otherwise it would miss the opportunity\nto call cops-\u003eqlen_notify(), in the case of DRR, it resulted in UAF\nsince DRR uses -\u003eqlen_notify() to maintain its active list.",
  "id": "GHSA-cg86-m5xc-jqrm",
  "modified": "2025-11-03T21:32:46Z",
  "published": "2025-02-18T15:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21703"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f8e3f4a4b8b90ad274dfbc66fc7d55cb582f4d5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6312555249082d6d8cc5321ff725df05482d8b83"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/638ba5089324796c2ee49af10427459c2de35f71"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b79ca9a1de6a428d486ff52fb3d602321c08f55"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f31d74fcc556a9166b1bb20515542de7bb939d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/839ecc583fa00fab785fde1c85a326743657fd32"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98a2c685293aae122f688cde11d9334dddc5d207"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e395fec75ac2dbffc99b4bce57b7f1f3c5449f2c"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.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-CG93-XX8V-PH94

Vulnerability from github – Published: 2022-05-14 03:54 – Updated: 2025-04-20 03:32
VLAI
Details

Adobe Flash Player versions 24.0.0.194 and earlier have an exploitable use after free vulnerability in the ActionScript 3 BitmapData class. Successful exploitation could lead to arbitrary code execution.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2017-2985"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-02-15T06:59:00Z",
    "severity": "CRITICAL"
  },
  "details": "Adobe Flash Player versions 24.0.0.194 and earlier have an exploitable use after free vulnerability in the ActionScript 3 BitmapData class. Successful exploitation could lead to arbitrary code execution.",
  "id": "GHSA-cg93-xx8v-ph94",
  "modified": "2025-04-20T03:32:51Z",
  "published": "2022-05-14T03:54:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-2985"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/flash-player/apsb17-04.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201702-20"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/41422"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2017-0275.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/96199"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1037815"
    }
  ],
  "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-CGC6-4XGF-5Q5X

Vulnerability from github – Published: 2024-12-19 00:37 – Updated: 2025-01-03 15:30
VLAI
Details

Use after free in Compositing in Google Chrome prior to 131.0.6778.204 allowed a remote attacker 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-2024-12694"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-18T22:15:06Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Compositing in Google Chrome prior to 131.0.6778.204 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
  "id": "GHSA-cgc6-4xgf-5q5x",
  "modified": "2025-01-03T15:30:38Z",
  "published": "2024-12-19T00:37:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-12694"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2024/12/stable-channel-update-for-desktop_18.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/368222741"
    }
  ],
  "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"
    }
  ]
}
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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