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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

11157 vulnerabilities reference this CWE, most recent first.

GHSA-W3F6-CX38-WFWX

Vulnerability from github – Published: 2022-05-24 19:01 – Updated: 2022-05-24 19:01
VLAI
Details

Possible use after free due to lack of null check while memory is being freed in FastRPC driver in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2021-1927"
  ],
  "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 lack of null check while memory is being freed in FastRPC driver in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice \u0026 Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking",
  "id": "GHSA-w3f6-cx38-wfwx",
  "modified": "2022-05-24T19:01:48Z",
  "published": "2022-05-24T19:01:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1927"
    },
    {
      "type": "WEB",
      "url": "https://www.qualcomm.com/company/product-security/bulletins/may-2021-bulletin"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-W3FW-6H3J-5R9Q

Vulnerability from github – Published: 2022-05-24 17:41 – Updated: 2022-05-24 17:41
VLAI
Details

Use after free in Fonts in Google Chrome prior to 88.0.4324.146 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-2021-21145"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-02-09T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Fonts in Google Chrome prior to 88.0.4324.146 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
  "id": "GHSA-w3fw-6h3j-5r9q",
  "modified": "2022-05-24T17:41:36Z",
  "published": "2022-05-24T17:41:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21145"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/1154965"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202104-08"
    }
  ],
  "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-W3GF-4959-2377

Vulnerability from github – Published: 2026-06-25 03:31 – Updated: 2026-06-25 03:31
VLAI
Details

sys/kern/sysv_sem.c in OpenBSD through 7.9 has a use-after-free allowing local privilege escalation to root. This is a context switch use-after-free after tsleep in sys_semget().

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

{
  "affected": [],
  "aliases": [
    "CVE-2026-57589"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T01:16:26Z",
    "severity": "HIGH"
  },
  "details": "sys/kern/sysv_sem.c in OpenBSD through 7.9 has a use-after-free allowing local privilege escalation to root. This is a context switch use-after-free after tsleep in sys_semget().",
  "id": "GHSA-w3gf-4959-2377",
  "modified": "2026-06-25T03:31:40Z",
  "published": "2026-06-25T03:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57589"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openbsd/src/commit/1957873d2063db11dab780eca75b5e629d1e838d"
    },
    {
      "type": "WEB",
      "url": "https://openai.com/index/patch-the-planet"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W3H2-4JRJ-6MCC

Vulnerability from github – Published: 2023-08-24 18:30 – Updated: 2024-04-04 07:10
VLAI
Details

A potential use-after-free vulnerability existed in SVG Images if the Refresh Driver was destroyed at an inopportune time. This could have lead to memory corruption or a potentially exploitable crash. Note: This advisory was added on December 13th, 2022 after discovering it was inadvertently left out of the original advisory. The fix was included in the original release of Firefox 106. This vulnerability affects Firefox < 106.

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-2022-46884"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-08-24T17:15:08Z",
    "severity": "HIGH"
  },
  "details": "A potential use-after-free vulnerability existed in SVG Images if the Refresh Driver was destroyed at an inopportune time.  This could have lead to memory corruption or a potentially exploitable crash.\n*Note*: This advisory was added on December 13th, 2022 after discovering it was inadvertently left out of the original advisory. The fix was included in the original release of Firefox 106. This vulnerability affects Firefox \u003c 106.",
  "id": "GHSA-w3h2-4jrj-6mcc",
  "modified": "2024-04-04T07:10:41Z",
  "published": "2023-08-24T18:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-46884"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1786818"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2022-44"
    }
  ],
  "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-W3H3-52FR-JJHW

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

Use after free in Sign-In Flow in Google Chrome prior to 104.0.5112.101 allowed a remote attacker to potentially exploit heap corruption via specific UI interaction.

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-2022-2858"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-09-26T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Sign-In Flow in Google Chrome prior to 104.0.5112.101 allowed a remote attacker to potentially exploit heap corruption via specific UI interaction.",
  "id": "GHSA-w3h3-52fr-jjhw",
  "modified": "2025-05-21T21:31:07Z",
  "published": "2022-09-27T00:00:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2858"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2022/08/stable-channel-update-for-desktop_16.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/1341918"
    },
    {
      "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"
    }
  ],
  "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-W3H3-5P95-FV5G

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

Use-after-free vulnerability in the nsHTMLCSSUtils::CreateCSSPropertyTxn 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-2012-4179"
  ],
  "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 nsHTMLCSSUtils::CreateCSSPropertyTxn 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-w3h3-5p95-fv5g",
  "modified": "2022-05-13T01:23:43Z",
  "published": "2022-05-13T01:23:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2012-4179"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=785574"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/79157"
    },
    {
      "type": "WEB",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16882"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html"
    },
    {
      "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/51181"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/55318"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2012/dsa-2565"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2012/dsa-2569"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2012/dsa-2572"
    },
    {
      "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.ubuntu.com/usn/USN-1611-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-W3H4-VPFJ-X3XQ

Vulnerability from github – Published: 2022-05-14 01:14 – Updated: 2025-04-20 03:31
VLAI
Details

libical 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.

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-2016-5824"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-01-27T22:59:00Z",
    "severity": "MODERATE"
  },
  "details": "libical 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.",
  "id": "GHSA-w3h4-vpfj-x3xq",
  "modified": "2025-04-20T03:31:39Z",
  "published": "2022-05-14T01:14:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-5824"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libical/libical/issues/235"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libical/libical/issues/251"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libical/libical/issues/286"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:0269"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:0270"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1275400"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201904-02"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201904-07"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3897-1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/06/25/4"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2017/01/20/16"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/91459"
    }
  ],
  "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-W3HV-RWGR-CRX3

Vulnerability from github – Published: 2024-02-29 03:33 – Updated: 2024-08-29 21:31
VLAI
Details

bt_sock_recvmsg in net/bluetooth/af_bluetooth.c in the Linux kernel through 6.6.8 has a use-after-free because of a bt_sock_ioctl race condition.

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-2023-51779"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-29T01:42:05Z",
    "severity": "HIGH"
  },
  "details": "bt_sock_recvmsg in net/bluetooth/af_bluetooth.c in the Linux kernel through 6.6.8 has a use-after-free because of a bt_sock_ioctl race condition.",
  "id": "GHSA-w3hv-rwgr-crx3",
  "modified": "2024-08-29T21:31:01Z",
  "published": "2024-02-29T03:33:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-51779"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/2e07e8348ea454615e268222ae3fc240421be768"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
    }
  ],
  "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-W3J7-W57F-MRWQ

Vulnerability from github – Published: 2023-08-03 18:30 – Updated: 2024-05-22 18:30
VLAI
Details

A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel. The bug occurs when the cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This flaw allows a local user to crash the system, causing a denial of service condition.

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

{
  "affected": [],
  "aliases": [
    "CVE-2023-4133"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-08-03T15:15:33Z",
    "severity": "MODERATE"
  },
  "details": "A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel. The bug occurs when the cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This flaw allows a local user to crash the system, causing a denial of service condition.",
  "id": "GHSA-w3j7-w57f-mrwq",
  "modified": "2024-05-22T18:30:37Z",
  "published": "2023-08-03T18:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4133"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:2394"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:2950"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:3138"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-4133"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2221702"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W3JP-CXWR-6JWC

Vulnerability from github – Published: 2026-05-11 21:31 – Updated: 2026-05-12 18:30
VLAI
Details

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An attacker in a privileged network position may be able to perform denial-of-service attack using crafted Wi-Fi packets.

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

{
  "affected": [],
  "aliases": [
    "CVE-2026-28994"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-11T21:18:59Z",
    "severity": "MODERATE"
  },
  "details": "A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An attacker in a privileged network position may be able to perform denial-of-service attack using crafted Wi-Fi packets.",
  "id": "GHSA-w3jp-cxwr-6jwc",
  "modified": "2026-05-12T18:30:37Z",
  "published": "2026-05-11T21:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28994"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/127110"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/127111"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/127115"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/127116"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/127117"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/127118"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/127119"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/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