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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

9821 vulnerabilities reference this CWE, most recent first.

GHSA-4XRM-7FMV-6PVG

Vulnerability from github – Published: 2022-05-17 03:29 – Updated: 2025-04-12 12:56
VLAI
Details

Use-after-free vulnerability in the instanceof function in Adobe Flash Player before 18.0.0.329 and 19.x and 20.x before 20.0.0.306 on Windows and OS X and before 11.2.202.569 on Linux, Adobe AIR before 20.0.0.260, Adobe AIR SDK before 20.0.0.260, and Adobe AIR SDK & Compiler before 20.0.0.260 allows attackers to execute arbitrary code by leveraging improper reference handling, a different vulnerability than CVE-2016-0973, CVE-2016-0974, CVE-2016-0982, CVE-2016-0983, and CVE-2016-0984.

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-2016-0975"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-02-10T20:59:00Z",
    "severity": "HIGH"
  },
  "details": "Use-after-free vulnerability in the instanceof function in Adobe Flash Player before 18.0.0.329 and 19.x and 20.x before 20.0.0.306 on Windows and OS X and before 11.2.202.569 on Linux, Adobe AIR before 20.0.0.260, Adobe AIR SDK before 20.0.0.260, and Adobe AIR SDK \u0026 Compiler before 20.0.0.260 allows attackers to execute arbitrary code by leveraging improper reference handling, a different vulnerability than CVE-2016-0973, CVE-2016-0974, CVE-2016-0982, CVE-2016-0983, and CVE-2016-0984.",
  "id": "GHSA-4xrm-7fmv-6pvg",
  "modified": "2025-04-12T12:56:54Z",
  "published": "2022-05-17T03:29:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-0975"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/flash-player/apsb16-04.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201603-07"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00025.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00027.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00029.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2016-0166.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1034970"
    },
    {
      "type": "WEB",
      "url": "http://zerodayinitiative.com/advisories/ZDI-16-160"
    }
  ],
  "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-4XRV-58CF-XVP6

Vulnerability from github – Published: 2022-05-24 19:11 – Updated: 2022-05-24 19:11
VLAI
Details

Adobe Illustrator version 25.2.3 (and earlier) is affected by a Use After Free vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to disclose potential sensitive information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2021-28593"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-20T19:15:00Z",
    "severity": "LOW"
  },
  "details": "Adobe Illustrator version 25.2.3 (and earlier) is affected by a Use After Free vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to disclose potential sensitive information 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-4xrv-58cf-xvp6",
  "modified": "2022-05-24T19:11:47Z",
  "published": "2022-05-24T19:11:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28593"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/illustrator/apsb21-42.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-4XWG-FXHM-6R9C

Vulnerability from github – Published: 2025-11-04 09:31 – Updated: 2025-11-05 00:31
VLAI
Details

In clkdbg, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10136671; Issue ID: MSV-4651.

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

{
  "affected": [],
  "aliases": [
    "CVE-2025-20743"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-04T07:15:46Z",
    "severity": "MODERATE"
  },
  "details": "In clkdbg, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10136671; Issue ID: MSV-4651.",
  "id": "GHSA-4xwg-fxhm-6r9c",
  "modified": "2025-11-05T00:31:32Z",
  "published": "2025-11-04T09:31:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20743"
    },
    {
      "type": "WEB",
      "url": "https://corp.mediatek.com/product-security-bulletin/November-2025"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-4XX4-XQW7-4F8R

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

Use after free in audio in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2020-6545"
  ],
  "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 audio in Google Chrome prior to 84.0.4147.125 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
  "id": "GHSA-4xx4-xqw7-4f8r",
  "modified": "2022-05-24T17:29:06Z",
  "published": "2022-05-24T17:29:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6545"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2020/08/stable-channel-update-for-desktop.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/1095584"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EE7XWIZBME7JAY7N6CGPET4CLNHHEIVT"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202101-30"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4824"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-4XXV-XHHW-92FW

Vulnerability from github – Published: 2025-06-10 18:32 – Updated: 2025-06-10 18:32
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
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-47164"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-10T17:23:31Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.",
  "id": "GHSA-4xxv-xhhw-92fw",
  "modified": "2025-06-10T18:32:30Z",
  "published": "2025-06-10T18:32:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47164"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-47164"
    }
  ],
  "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-5223-3442-QP3J

Vulnerability from github – Published: 2022-05-13 01:23 – Updated: 2022-05-13 01:23
VLAI
Details

Use-after-free vulnerability in the DOMSVGTests::GetRequiredFeatures function in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2012-4183"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2012-10-10T17:55:00Z",
    "severity": "HIGH"
  },
  "details": "Use-after-free vulnerability in the DOMSVGTests::GetRequiredFeatures function in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.",
  "id": "GHSA-5223-3442-qp3j",
  "modified": "2022-05-13T01:23:59Z",
  "published": "2022-05-13T01:23:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-4183"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=786895"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/79161"
    },
    {
      "type": "WEB",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16850"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html"
    },
    {
      "type": "WEB",
      "url": "http://osvdb.org/86095"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2012-1351.html"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/50856"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/50892"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/50904"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/50935"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/50936"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/50984"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/55318"
    },
    {
      "type": "WEB",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:163"
    },
    {
      "type": "WEB",
      "url": "http://www.mozilla.org/security/announce/2012/mfsa2012-85.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/56140"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-1611-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-5265-H4F9-W9CF

Vulnerability from github – Published: 2022-04-15 00:00 – Updated: 2022-04-22 00:01
VLAI
Details

MariaDB Server v10.6.3 and below was discovered to contain an use-after-free in the component my_wildcmp_8bit_impl at /strings/ctype-simple.c.

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

{
  "affected": [],
  "aliases": [
    "CVE-2022-27455"
  ],
  "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 my_wildcmp_8bit_impl at /strings/ctype-simple.c.",
  "id": "GHSA-5265-h4f9-w9cf",
  "modified": "2022-04-22T00:01:00Z",
  "published": "2022-04-15T00:00:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27455"
    },
    {
      "type": "WEB",
      "url": "https://jira.mariadb.org/browse/MDEV-28097"
    },
    {
      "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-5289-2Q6R-6Q3G

Vulnerability from github – Published: 2025-03-04 15:31 – Updated: 2025-03-05 18:32
VLAI
Details

On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process. This could have led to a sandbox escape. This vulnerability affects Firefox < 136, Firefox ESR < 115.21, and Firefox ESR < 128.8.

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-2025-1930"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-04T14:15:37Z",
    "severity": "HIGH"
  },
  "details": "On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process. This could have led to a sandbox escape. This vulnerability affects Firefox \u003c 136, Firefox ESR \u003c 115.21, and Firefox ESR \u003c 128.8.",
  "id": "GHSA-5289-2q6r-6q3g",
  "modified": "2025-03-05T18:32:04Z",
  "published": "2025-03-04T15:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-1930"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1902309"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-14"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-15"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-16"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-17"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-18"
    }
  ],
  "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-529R-6CWW-Q8VR

Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-06-10 21:31
VLAI
Details

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

spi: mpc52xx: fix use-after-free on registration failure

Make sure to disable and free the interrupts in case controller registration fails to avoid a potential use-after-free and resource leak.

This issue was flagged by Sashiko when reviewing a controller deregistration fix.

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-2026-46241"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:39Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: mpc52xx: fix use-after-free on registration failure\n\nMake sure to disable and free the interrupts in case controller\nregistration fails to avoid a potential use-after-free and resource\nleak.\n\nThis issue was flagged by Sashiko when reviewing a controller\nderegistration fix.",
  "id": "GHSA-529r-6cww-q8vr",
  "modified": "2026-06-10T21:31:26Z",
  "published": "2026-05-28T12:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46241"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/336d9ad7560b3baba17af06727a888040ee93390"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5c77f11b9b5f1ad5a704dad875260c44016ede10"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8b49b6aadd0c622ca7d68b4a53ae10362e221cf3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f62c060272b9d7423b1650b844e8e4e7b8f9f925"
    }
  ],
  "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-52MH-J549-66JF

Vulnerability from github – Published: 2022-05-24 19:07 – Updated: 2022-05-24 19:07
VLAI
Details

A vulnerability has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The Jt981.dll library in affected applications lacks proper validation of user-supplied data prior to performing further free operations on an object when parsing JT files. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13420)

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2021-34324"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-07-13T11:15:00Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability has been identified in JT2Go (All versions \u003c V13.2), Teamcenter Visualization (All versions \u003c V13.2). The Jt981.dll library in affected applications lacks proper validation of user-supplied data prior to performing further free operations on an object when parsing JT files. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13420)",
  "id": "GHSA-52mh-j549-66jf",
  "modified": "2022-05-24T19:07:38Z",
  "published": "2022-05-24T19:07:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34324"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-483182.pdf"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-862"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}
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