Common Weakness Enumeration

CWE-416

Allowed

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

12502 vulnerabilities reference this CWE, most recent first.

GHSA-JXC4-GM3R-9HX3

Vulnerability from github – Published: 2024-05-15 12:31 – Updated: 2024-05-15 12:31
VLAI
Details

Acrobat Reader versions 20.005.30574, 24.002.20736 and earlier are affected by a Use After Free vulnerability 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.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-30284"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-15T10:15:08Z",
    "severity": "HIGH"
  },
  "details": "Acrobat Reader versions 20.005.30574, 24.002.20736 and earlier are affected by a Use After Free vulnerability 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-jxc4-gm3r-9hx3",
  "modified": "2024-05-15T12:31:14Z",
  "published": "2024-05-15T12:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30284"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/acrobat/apsb24-29.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-JXF6-FX3M-8X2R

Vulnerability from github – Published: 2022-05-13 01:09 – Updated: 2025-11-04 18:30
VLAI
Details

Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-9798"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-09-18T15:29:00Z",
    "severity": "HIGH"
  },
  "details": "Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user\u0027s .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.",
  "id": "GHSA-jxf6-fx3m-8x2r",
  "modified": "2025-11-04T18:30:34Z",
  "published": "2022-05-13T01:09:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9798"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/httpd/commit/4cc27823899e070268b906ca677ee838d07cf67a"
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    },
    {
      "type": "WEB",
      "url": "https://security-tracker.debian.org/tracker/CVE-2017-9798"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201710-32"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20180601-0003"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/HT208331"
    },
    {
      "type": "WEB",
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03909en_us"
    },
    {
      "type": "WEB",
      "url": "https://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?r1=1805223\u0026r2=1807754\u0026pathrev=1807754\u0026view=patch"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/42745"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/tns-2019-09"
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      "url": "https://access.redhat.com/errata/RHSA-2017:2882"
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      "url": "https://access.redhat.com/errata/RHSA-2017:2972"
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3018"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3113"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3114"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3193"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3194"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3195"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3239"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3240"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3475"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3476"
    },
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:3477"
    },
    {
      "type": "WEB",
      "url": "https://blog.fuzzing-project.org/60-Optionsbleed-HTTP-OPTIONS-method-can-leak-Apaches-server-memory.html"
    },
    {
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      "url": "https://blog.fuzzing-project.org/uploads/apache-2.2-optionsbleed-backport.patch"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hannob/optionsbleed"
    },
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      "url": "https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2017-9798"
    },
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    },
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      "type": "WEB",
      "url": "http://openwall.com/lists/oss-security/2017/09/18/2"
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      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Sep/22"
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      "url": "http://www.debian.org/security/2017/dsa-3980"
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      "url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html"
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      "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
    },
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      "url": "http://www.securityfocus.com/bid/100872"
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      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1039387"
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  "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-JXFF-HX2C-2GMW

Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details

Use after free in Windows DHCP Client allows an unauthorized attacker to execute code locally.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-54128"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-14T18:18:08Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Windows DHCP Client allows an unauthorized attacker to execute code locally.",
  "id": "GHSA-jxff-hx2c-2gmw",
  "modified": "2026-07-14T18:32:31Z",
  "published": "2026-07-14T18:32:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54128"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54128"
    }
  ],
  "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-JXFH-R792-52QR

Vulnerability from github – Published: 2025-02-15 03:31 – Updated: 2025-02-18 18:33
VLAI
Details

Use after free in Navigation in Google Chrome prior to 133.0.6943.98 allowed a remote attacker to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: High)

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2025-0997"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-15T02:15:09Z",
    "severity": "MODERATE"
  },
  "details": "Use after free in Navigation in Google Chrome prior to 133.0.6943.98 allowed a remote attacker to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: High)",
  "id": "GHSA-jxfh-r792-52qr",
  "modified": "2025-02-18T18:33:21Z",
  "published": "2025-02-15T03:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0997"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2025/02/stable-channel-update-for-desktop_12.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/391666328"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-JXJ3-7969-PQHQ

Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details

Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-50449"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-14T18:17:49Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.",
  "id": "GHSA-jxj3-7969-pqhq",
  "modified": "2026-07-14T18:32:24Z",
  "published": "2026-07-14T18:32:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50449"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50449"
    }
  ],
  "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-JXJ9-2H46-GWF3

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

A use-after-free vulnerability exists in the way MKVToolNix MKVINFO v25.0.0 handles the MKV (matroska) file format. A specially crafted MKV file can cause arbitrary code execution in the context of the current user.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-4022"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-10-26T17:29:00Z",
    "severity": "HIGH"
  },
  "details": "A use-after-free vulnerability exists in the way MKVToolNix MKVINFO v25.0.0 handles the MKV (matroska) file format. A specially crafted MKV file can cause arbitrary code execution in the context of the current user.",
  "id": "GHSA-jxj9-2h46-gwf3",
  "modified": "2022-05-13T01:01:44Z",
  "published": "2022-05-13T01:01:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-4022"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2018-0694"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-JXJW-P472-87G9

Vulnerability from github – Published: 2022-05-17 00:14 – Updated: 2022-05-17 00:14
VLAI
Details

An issue was discovered in Adobe Acrobat and Reader: 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, and 11.0.22 and earlier versions. This vulnerability is an instance of a use after free vulnerability in the JavaScript engine. The mismatch between an old and a new object can provide an attacker with unintended memory access -- potentially leading to code corruption, control-flow hijack, or an information leak attack. Successful exploitation could lead to arbitrary code execution.

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{
  "affected": [],
  "aliases": [
    "CVE-2017-16398"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-12-09T06:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in Adobe Acrobat and Reader: 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, and 11.0.22 and earlier versions. This vulnerability is an instance of a use after free vulnerability in the JavaScript engine. The mismatch between an old and a new object can provide an attacker with unintended memory access -- potentially leading to code corruption, control-flow hijack, or an information leak attack. Successful exploitation could lead to arbitrary code execution.",
  "id": "GHSA-jxjw-p472-87g9",
  "modified": "2022-05-17T00:14:39Z",
  "published": "2022-05-17T00:14:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-16398"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/acrobat/apsb17-36.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/101818"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1039791"
    }
  ],
  "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-JXMM-FRJR-GRQR

Vulnerability from github – Published: 2022-05-24 19:01 – Updated: 2025-10-22 00:32
VLAI
Details

Possible use after free due to improper handling of memory mapping of multiple processes simultaneously. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

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{
  "affected": [],
  "aliases": [
    "CVE-2021-1905"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-05-07T09:15:00Z",
    "severity": "HIGH"
  },
  "details": "Possible use after free due to improper handling of memory mapping of multiple processes simultaneously. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music, Snapdragon Wearables",
  "id": "GHSA-jxmm-frjr-grqr",
  "modified": "2025-10-22T00:32:15Z",
  "published": "2022-05-24T19:01:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1905"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1905"
    },
    {
      "type": "WEB",
      "url": "https://www.qualcomm.com/company/product-security/bulletins/may-2021-bulletin"
    }
  ],
  "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-JXQM-2CJV-RXVX

Vulnerability from github – Published: 2022-05-13 01:31 – Updated: 2022-05-13 01:31
VLAI
Details

In Omron CX-Supervisor Versions 3.30 and prior, use after free vulnerabilities can be exploited when CX Supervisor parses a specially crafted project file.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-7521"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-03-21T20:29:00Z",
    "severity": "MODERATE"
  },
  "details": "In Omron CX-Supervisor Versions 3.30 and prior, use after free vulnerabilities can be exploited when CX Supervisor parses a specially crafted project file.",
  "id": "GHSA-jxqm-2cjv-rxvx",
  "modified": "2022-05-13T01:31:52Z",
  "published": "2022-05-13T01:31:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-7521"
    },
    {
      "type": "WEB",
      "url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-072-01"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/103394"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-JXQV-W6J2-6P4V

Vulnerability from github – Published: 2022-05-14 01:02 – Updated: 2025-04-12 12:48
VLAI
Details

Use-after-free vulnerability in the kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges via a crafted application, aka "Microsoft Windows Kernel Brush Object Use After Free Vulnerability."

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2015-1726"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2015-06-10T01:59:00Z",
    "severity": "HIGH"
  },
  "details": "Use-after-free vulnerability in the kernel-mode drivers in Microsoft Windows Server 2003 SP2 and R2 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows local users to gain privileges via a crafted application, aka \"Microsoft Windows Kernel Brush Object Use After Free Vulnerability.\"",
  "id": "GHSA-jxqv-w6j2-6p4v",
  "modified": "2025-04-12T12:48:36Z",
  "published": "2022-05-14T01:02:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-1726"
    },
    {
      "type": "WEB",
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-061"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/38269"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1032525"
    }
  ],
  "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.