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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

11154 vulnerabilities reference this CWE, most recent first.

GHSA-XFRR-6JR6-GWJR

Vulnerability from github – Published: 2026-10-06 21:31 – Updated: 2026-10-06 21:31
VLAI
Details

In BluetoothCccHandlerCallbackImpl of bluetooth_ccc.cc, there is a possible use-after-free due to a logic error in the code. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-55330"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-06T19:18:14Z",
    "severity": "CRITICAL"
  },
  "details": "In BluetoothCccHandlerCallbackImpl of bluetooth_ccc.cc, there is a possible use-after-free due to a logic error in the code. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.",
  "id": "GHSA-xfrr-6jr6-gwjr",
  "modified": "2026-10-06T21:31:50Z",
  "published": "2026-10-06T21:31:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55330"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/docs/security/bulletin/pixel/2026/2026-10-01"
    }
  ],
  "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-XFRX-PFWR-X3H9

Vulnerability from github – Published: 2026-08-25 21:31 – Updated: 2026-08-26 18:31
VLAI
Details

Use after free in Accessibility in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via UI Interaction. (Chromium security severity: High)

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-79183"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-25T21:18:11Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Accessibility in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via UI Interaction. (Chromium security severity: High)",
  "id": "GHSA-xfrx-pfwr-x3h9",
  "modified": "2026-08-26T18:31:46Z",
  "published": "2026-08-25T21:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-79183"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/521942358"
    }
  ],
  "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-XFVP-H462-P6Q2

Vulnerability from github – Published: 2024-02-23 15:30 – Updated: 2024-06-25 21:31
VLAI
Details

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

KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache

There is a potential UAF scenario in the case of an LPI translation cache hit racing with an operation that invalidates the cache, such as a DISCARD ITS command. The root of the problem is that vgic_its_check_cache() does not elevate the refcount on the vgic_irq before dropping the lock that serializes refcount changes.

Have vgic_its_check_cache() raise the refcount on the returned vgic_irq and add the corresponding decrement after queueing the interrupt.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-26598"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-23T15:15:09Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache\n\nThere is a potential UAF scenario in the case of an LPI translation\ncache hit racing with an operation that invalidates the cache, such\nas a DISCARD ITS command. The root of the problem is that\nvgic_its_check_cache() does not elevate the refcount on the vgic_irq\nbefore dropping the lock that serializes refcount changes.\n\nHave vgic_its_check_cache() raise the refcount on the returned vgic_irq\nand add the corresponding decrement after queueing the interrupt.",
  "id": "GHSA-xfvp-h462-p6q2",
  "modified": "2024-06-25T21:31:11Z",
  "published": "2024-02-23T15:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26598"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12c2759ab1343c124ed46ba48f27bd1ef5d2dff4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65b201bf3e9af1b0254243a5881390eda56f72d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ad362fe07fecf0aba839ff2cc59a3617bd42c33f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ba7be666740847d967822bed15500656b26bc703"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d04acadb6490aa3314f9c9e087691e55de153b88"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dba788e25f05209adf2b0175eb1691dc89fb1ba6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd3956a1b3dd11f46488c928cb890d6937d1ca80"
    },
    {
      "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:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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-XFXQ-CR26-X4W9

Vulnerability from github – Published: 2026-09-08 18:33 – Updated: 2026-09-08 18:33
VLAI
Details

Use after free in Windows Ancillary Function Driver for WinSock allows an unauthorized attacker to elevate privileges over a network.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-70342"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-08T18:20:07Z",
    "severity": "HIGH"
  },
  "details": "Use after free in Windows Ancillary Function Driver for WinSock allows an unauthorized attacker to elevate privileges over a network.",
  "id": "GHSA-xfxq-cr26-x4w9",
  "modified": "2026-09-08T18:33:06Z",
  "published": "2026-09-08T18:33:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70342"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70342"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/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"
    }
  ]
}

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.