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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

10200 vulnerabilities reference this CWE, most recent first.

GHSA-XFW5-333J-65XG

Vulnerability from github – Published: 2022-08-13 00:00 – Updated: 2022-08-16 00:00
VLAI
Details

Use after free in Tab Strip in Google Chrome on Chrome OS prior to 104.0.5112.79 allowed a remote attacker who convinced a user to engage in specific user interactions to potentially exploit heap corruption via specific UI interactions.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-2607"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-08-12T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Tab Strip in Google Chrome on Chrome OS prior to 104.0.5112.79 allowed a remote attacker who convinced a user to engage in specific user interactions to potentially exploit heap corruption via specific UI interactions.",
  "id": "GHSA-xfw5-333j-65xg",
  "modified": "2022-08-16T00:00:24Z",
  "published": "2022-08-13T00:00:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2607"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2022/08/stable-channel-update-for-desktop.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/1286203"
    },
    {
      "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-XFX9-7343-FMVV

Vulnerability from github – Published: 2023-03-16 21:30 – Updated: 2023-03-23 21:30
VLAI
Details

Use after free vulnerability in decon driver prior to SMR Mar-2023 Release 1 allows attackers to cause memory access fault.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-21459"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-03-16T21:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Use after free vulnerability in decon driver prior to SMR Mar-2023 Release 1 allows attackers to cause memory access fault.",
  "id": "GHSA-xfx9-7343-fmvv",
  "modified": "2023-03-23T21:30:20Z",
  "published": "2023-03-16T21:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-21459"
    },
    {
      "type": "WEB",
      "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2023\u0026month=03"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XG7J-75JQ-GM7F

Vulnerability from github – Published: 2022-05-13 01:09 – Updated: 2022-05-13 01:09
VLAI
Details

An issue was discovered in aio_poll() in fs/aio.c in the Linux kernel through 5.0.4. A file may be released by aio_poll_wake() if an expected event is triggered immediately (e.g., by the close of a pair of pipes) after the return of vfs_poll(), and this will cause a use-after-free.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-10125"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-03-27T06:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in aio_poll() in fs/aio.c in the Linux kernel through 5.0.4. A file may be released by aio_poll_wake() if an expected event is triggered immediately (e.g., by the close of a pair of pipes) after the return of vfs_poll(), and this will cause a use-after-free.",
  "id": "GHSA-xg7j-75jq-gm7f",
  "modified": "2022-05-13T01:09:55Z",
  "published": "2022-05-13T01:09:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10125"
    },
    {
      "type": "WEB",
      "url": "https://patchwork.kernel.org/patch/10828359"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20190411-0003"
    },
    {
      "type": "WEB",
      "url": "https://support.f5.com/csp/article/K29215970"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/107655"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XG7P-G635-VRG9

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

An issue was discovered in JerryScript 2.4.0. There is a heap-use-after-free in ecma_bytecode_ref in ecma-helpers.c file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-26199"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-06-10T23:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in JerryScript 2.4.0. There is a heap-use-after-free in ecma_bytecode_ref in ecma-helpers.c file.",
  "id": "GHSA-xg7p-g635-vrg9",
  "modified": "2022-05-24T19:05:12Z",
  "published": "2022-05-24T19:05:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26199"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jerryscript-project/jerryscript/issues/4056"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-XG88-J2C7-G852

Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-06-28 09:31
VLAI
Details

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

greybus: raw: fix use-after-free if write is called after disconnect

If a user writes to the chardev after disconnect has been called, the kernel panics with the following trace (with CONFIG_INIT_ON_FREE_DEFAULT_ON=y):

    BUG: kernel NULL pointer dereference, address: 0000000000000218
     ...
    Call Trace:
     <TASK>
     gb_operation_create_common+0x61/0x180
     gb_operation_create_flags+0x28/0xa0
     gb_operation_sync_timeout+0x6f/0x100
     raw_write+0x7b/0xc7 [gb_raw]
     vfs_write+0xcf/0x420
     ? task_mm_cid_work+0x136/0x220
     ksys_write+0x63/0xe0
     do_syscall_64+0xa4/0x290
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

Disconnect calls gb_connection_destroy, which ends up freeing the connection object. When gb_operation_sync is called in the write file operations, its gets a freed connection as parameter and the kernel panics.

The gb_connection_destroy cannot be moved out of the disconnect function, as the Greybus subsystem expect all connections belonging to a bundle to be destroyed when disconnect returns.

To prevent this bug, use a rw lock to synchronize access between write and disconnect. This guarantees that the write function doesn't try to use a disconnected connection.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-53024"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T17:17:13Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngreybus: raw: fix use-after-free if write is called after disconnect\n\nIf a user writes to the chardev after disconnect has been called, the\nkernel panics with the following trace (with\nCONFIG_INIT_ON_FREE_DEFAULT_ON=y):\n\n        BUG: kernel NULL pointer dereference, address: 0000000000000218\n         ...\n        Call Trace:\n         \u003cTASK\u003e\n         gb_operation_create_common+0x61/0x180\n         gb_operation_create_flags+0x28/0xa0\n         gb_operation_sync_timeout+0x6f/0x100\n         raw_write+0x7b/0xc7 [gb_raw]\n         vfs_write+0xcf/0x420\n         ? task_mm_cid_work+0x136/0x220\n         ksys_write+0x63/0xe0\n         do_syscall_64+0xa4/0x290\n         entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nDisconnect calls gb_connection_destroy, which ends up freeing the\nconnection object. When gb_operation_sync is called in the write file\noperations, its gets a freed connection as parameter and the kernel\npanics.\n\nThe gb_connection_destroy cannot be moved out of the disconnect\nfunction, as the Greybus subsystem expect all connections belonging to a\nbundle to be destroyed when disconnect returns.\n\nTo prevent this bug, use a rw lock to synchronize access between write\nand disconnect. This guarantees that the write function doesn\u0027t try\nto use a disconnected connection.",
  "id": "GHSA-xg88-j2c7-g852",
  "modified": "2026-06-28T09:31:39Z",
  "published": "2026-06-24T18:32:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53024"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48d6c32bc049abd114e8f0836c0e7d7cbfba7827"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84265cbd96b97058ef67e3f8be3933667a000835"
    }
  ],
  "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-XGF8-98PJ-CM5C

Vulnerability from github – Published: 2022-05-24 19:19 – Updated: 2025-11-04 18:30
VLAI
Details

An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-43400"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-11-04T23:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call.",
  "id": "GHSA-xgf8-98pj-cm5c",
  "modified": "2025-11-04T18:30:35Z",
  "published": "2022-05-24T19:19:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43400"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=838c0dc7641e1c991c0f3027bf94bee4606012f8"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00026.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-XGMF-QCP6-M7MC

Vulnerability from github – Published: 2022-05-24 16:59 – Updated: 2022-05-24 16:59
VLAI
Details

Adobe Acrobat and Reader versions , 2019.012.20040 and earlier, 2017.011.30148 and earlier, 2017.011.30148 and earlier, 2015.006.30503 and earlier, and 2015.006.30503 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution .

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-8224"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-10-17T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "Adobe Acrobat and Reader versions , 2019.012.20040 and earlier, 2017.011.30148 and earlier, 2017.011.30148 and earlier, 2015.006.30503 and earlier, and 2015.006.30503 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution .",
  "id": "GHSA-xgmf-qcp6-m7mc",
  "modified": "2022-05-24T16:59:26Z",
  "published": "2022-05-24T16:59:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8224"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/acrobat/apsb19-49.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-XGP9-VP73-WGRV

Vulnerability from github – Published: 2026-08-07 00:31 – Updated: 2026-08-07 03:30
VLAI
Details

Use after free in Views in Google Chrome prior to 151.0.7922.109 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)

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-19172"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-06T22:16:59Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Views in Google Chrome prior to 151.0.7922.109 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-xgp9-vp73-wgrv",
  "modified": "2026-08-07T03:30:27Z",
  "published": "2026-08-07T00:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19172"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_01193673229.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/537838324"
    }
  ],
  "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-XGQ2-HC7C-VJ94

Vulnerability from github – Published: 2024-05-08 00:31 – Updated: 2024-05-08 00:31
VLAI
Details

Foxit PDF Editor Ink Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Editor. 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 Annotation objects. 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-14363.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-34961"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-07T23:15:10Z",
    "severity": "HIGH"
  },
  "details": "Foxit PDF Editor Ink Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the handling of Annotation objects. 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-14363.",
  "id": "GHSA-xgq2-hc7c-vj94",
  "modified": "2024-05-08T00:31:14Z",
  "published": "2024-05-08T00:31:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34961"
    },
    {
      "type": "WEB",
      "url": "https://www.foxit.com/support/security-bulletins.html"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1192"
    }
  ],
  "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-XGR2-4F4Q-M3P9

Vulnerability from github – Published: 2023-11-14 15:30 – Updated: 2024-08-27 15:32
VLAI
Details

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.

The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times.

We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-6111"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-11-14T14:15:29Z",
    "severity": "HIGH"
  },
  "details": "A use-after-free vulnerability in the Linux kernel\u0027s netfilter: nf_tables component can be exploited to achieve local privilege escalation.\n\nThe function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times.\n\nWe recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.\n\n",
  "id": "GHSA-xgr2-4f4q-m3p9",
  "modified": "2024-08-27T15:32:42Z",
  "published": "2023-11-14T15:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6111"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630"
    },
    {
      "type": "WEB",
      "url": "https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB"
    }
  ],
  "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"
    }
  ]
}

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.