CWE-416
AllowedUse 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
10829 vulnerabilities reference this CWE, most recent first.
GHSA-XFRX-PFWR-X3H9
Vulnerability from github – Published: 2026-08-25 21:31 – Updated: 2026-08-26 18:31Use 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)
{
"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 21:31In 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.
{
"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 00:00Use 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.
{
"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 21:30Use after free vulnerability in decon driver prior to SMR Mar-2023 Release 1 allows attackers to cause memory access fault.
{
"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 18:33Use after free in Windows Ancillary Function Driver for WinSock allows an unauthorized attacker to elevate privileges over a network.
{
"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 01:09An 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.
{
"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 19:05An issue was discovered in JerryScript 2.4.0. There is a heap-use-after-free in ecma_bytecode_ref in ecma-helpers.c file.
{
"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 09:31In 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.
{
"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 18:30An 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.
{
"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 16:59Adobe 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 .
{
"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": []
}
Mitigation
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
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.