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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9839 vulnerabilities reference this CWE, most recent first.
GHSA-H6JP-7Q5X-G3XX
Vulnerability from github – Published: 2022-08-18 00:00 – Updated: 2022-08-19 00:00GPAC mp4box 2.1-DEV-revUNKNOWN-master has a use-after-free vulnerability in function gf_isom_dovi_config_get. This vulnerability was fixed in commit fef6242.
{
"affected": [],
"aliases": [
"CVE-2022-36190"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-17T15:15:00Z",
"severity": "CRITICAL"
},
"details": "GPAC mp4box 2.1-DEV-revUNKNOWN-master has a use-after-free vulnerability in function gf_isom_dovi_config_get. This vulnerability was fixed in commit fef6242.",
"id": "GHSA-h6jp-7q5x-g3xx",
"modified": "2022-08-19T00:00:19Z",
"published": "2022-08-18T00:00:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36190"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/2220"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5411"
}
],
"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-H6M7-5G9V-G97C
Vulnerability from github – Published: 2025-06-10 21:31 – Updated: 2025-06-10 21:31Acrobat Reader versions 24.001.30235, 20.005.30763, 25.001.20521 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.
{
"affected": [],
"aliases": [
"CVE-2025-43550"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-10T19:15:32Z",
"severity": "HIGH"
},
"details": "Acrobat Reader versions 24.001.30235, 20.005.30763, 25.001.20521 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-h6m7-5g9v-g97c",
"modified": "2025-06-10T21:31:22Z",
"published": "2025-06-10T21:31:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-43550"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb25-57.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-H6M9-GQ43-HHQ2
Vulnerability from github – Published: 2024-02-28 09:30 – Updated: 2025-01-09 15:31In the Linux kernel, the following vulnerability has been resolved:
RDMA/rtrs-clt: destroy sysfs after removing session from active list
A session can be removed dynamically by sysfs interface "remove_path" that eventually calls rtrs_clt_remove_path_from_sysfs function. The current rtrs_clt_remove_path_from_sysfs first removes the sysfs interfaces and frees sess->stats object. Second it removes the session from the active list.
Therefore some functions could access non-connected session and access the freed sess->stats object even-if they check the session status before accessing the session.
For instance rtrs_clt_request and get_next_path_min_inflight check the session status and try to send IO to the session. The session status could be changed when they are trying to send IO but they could not catch the change and update the statistics information in sess->stats object, and generate use-after-free problem. (see: "RDMA/rtrs-clt: Check state of the rtrs_clt_sess before reading its stats")
This patch changes the rtrs_clt_remove_path_from_sysfs to remove the session from the active session list and then destroy the sysfs interfaces.
Each function still should check the session status because closing or error recovery paths can change the status.
{
"affected": [],
"aliases": [
"CVE-2021-47026"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-28T09:15:39Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs-clt: destroy sysfs after removing session from active list\n\nA session can be removed dynamically by sysfs interface \"remove_path\" that\neventually calls rtrs_clt_remove_path_from_sysfs function. The current\nrtrs_clt_remove_path_from_sysfs first removes the sysfs interfaces and\nfrees sess-\u003estats object. Second it removes the session from the active\nlist.\n\nTherefore some functions could access non-connected session and access the\nfreed sess-\u003estats object even-if they check the session status before\naccessing the session.\n\nFor instance rtrs_clt_request and get_next_path_min_inflight check the\nsession status and try to send IO to the session. The session status\ncould be changed when they are trying to send IO but they could not catch\nthe change and update the statistics information in sess-\u003estats object,\nand generate use-after-free problem.\n(see: \"RDMA/rtrs-clt: Check state of the rtrs_clt_sess before reading its\nstats\")\n\nThis patch changes the rtrs_clt_remove_path_from_sysfs to remove the\nsession from the active session list and then destroy the sysfs\ninterfaces.\n\nEach function still should check the session status because closing or\nerror recovery paths can change the status.",
"id": "GHSA-h6m9-gq43-hhq2",
"modified": "2025-01-09T15:31:50Z",
"published": "2024-02-28T09:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47026"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/676171f9405dcaa45a33d18241c32f387dbaae39"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7f4a8592ff29f19c5a2ca549d0973821319afaad"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b64415c6b3476cf9fa4d0aea3807065b8403a937"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d3cca8067d43dfee4a3535c645b55f618708dccb"
}
],
"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-H6MC-W32Q-4XCQ
Vulnerability from github – Published: 2022-06-22 00:00 – Updated: 2022-06-30 00:00A maliciously crafted JT file in Autodesk AutoCAD 2022, 2021, 2020, 2019 can be used to trigger use-after-free vulnerability. Exploitation of this vulnerability may lead to code execution.
{
"affected": [],
"aliases": [
"CVE-2022-27867"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-21T15:15:00Z",
"severity": "HIGH"
},
"details": "A maliciously crafted JT file in Autodesk AutoCAD 2022, 2021, 2020, 2019 can be used to trigger use-after-free vulnerability. Exploitation of this vulnerability may lead to code execution.",
"id": "GHSA-h6mc-w32q-4xcq",
"modified": "2022-06-30T00:00:35Z",
"published": "2022-06-22T00:00:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27867"
},
{
"type": "WEB",
"url": "https://www.autodesk.com/trust/security-advisories/adsk-sa-2022-0002"
}
],
"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-H6MX-XM3R-4CF4
Vulnerability from github – Published: 2022-06-03 00:01 – Updated: 2022-06-12 00:00Use After Free in GitHub repository vim/vim prior to 8.2.
{
"affected": [],
"aliases": [
"CVE-2022-1968"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-02T14:15:00Z",
"severity": "HIGH"
},
"details": "Use After Free in GitHub repository vim/vim prior to 8.2.",
"id": "GHSA-h6mx-xm3r-4cf4",
"modified": "2022-06-12T00:00:47Z",
"published": "2022-06-03T00:01:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1968"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/409510c588b1eec1ae33511ae97a21eb8e110895"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/949090e5-f4ea-4edf-bd79-cd98f0498a5b"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/06/msg00014.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-32"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-16"
},
{
"type": "WEB",
"url": "https://support.apple.com/kb/HT213488"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/28"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2022/Oct/41"
}
],
"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-H6P2-5H78-3XMH
Vulnerability from github – Published: 2026-01-23 18:31 – Updated: 2026-02-26 21:31In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix use-after-free warning in btrfs_get_or_create_delayed_node()
Previously, btrfs_get_or_create_delayed_node() set the delayed_node's refcount before acquiring the root->delayed_nodes lock. Commit e8513c012de7 ("btrfs: implement ref_tracker for delayed_nodes") moved refcount_set inside the critical section, which means there is no longer a memory barrier between setting the refcount and setting btrfs_inode->delayed_node.
Without that barrier, the stores to node->refs and btrfs_inode->delayed_node may become visible out of order. Another thread can then read btrfs_inode->delayed_node and attempt to increment a refcount that hasn't been set yet, leading to a refcounting bug and a use-after-free warning.
The fix is to move refcount_set back to where it was to take advantage of the implicit memory barrier provided by lock acquisition.
Because the allocations now happen outside of the lock's critical section, they can use GFP_NOFS instead of GFP_ATOMIC.
{
"affected": [],
"aliases": [
"CVE-2025-71159"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-23T16:15:52Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix use-after-free warning in btrfs_get_or_create_delayed_node()\n\nPreviously, btrfs_get_or_create_delayed_node() set the delayed_node\u0027s\nrefcount before acquiring the root-\u003edelayed_nodes lock.\nCommit e8513c012de7 (\"btrfs: implement ref_tracker for delayed_nodes\")\nmoved refcount_set inside the critical section, which means there is\nno longer a memory barrier between setting the refcount and setting\nbtrfs_inode-\u003edelayed_node.\n\nWithout that barrier, the stores to node-\u003erefs and\nbtrfs_inode-\u003edelayed_node may become visible out of order. Another\nthread can then read btrfs_inode-\u003edelayed_node and attempt to\nincrement a refcount that hasn\u0027t been set yet, leading to a\nrefcounting bug and a use-after-free warning.\n\nThe fix is to move refcount_set back to where it was to take\nadvantage of the implicit memory barrier provided by lock\nacquisition.\n\nBecause the allocations now happen outside of the lock\u0027s critical\nsection, they can use GFP_NOFS instead of GFP_ATOMIC.",
"id": "GHSA-h6p2-5h78-3xmh",
"modified": "2026-02-26T21:31:27Z",
"published": "2026-01-23T18:31:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71159"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/83f59076a1ae6f5c6845d6f7ed3a1a373d883684"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c8385851a5435f4006281828d428e5d0b0bbf8af"
}
],
"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-H6P8-MV4F-G96V
Vulnerability from github – Published: 2024-12-19 00:37 – Updated: 2024-12-19 00:37Acrobat Reader DC version 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (and earlier) are affected by a use-after-free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2022-44519"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-19T00:15:06Z",
"severity": "MODERATE"
},
"details": "Acrobat Reader DC version 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (and earlier) are affected by a use-after-free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-h6p8-mv4f-g96v",
"modified": "2024-12-19T00:37:36Z",
"published": "2024-12-19T00:37:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-44519"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb22-16.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-H6WF-GRQM-Q95X
Vulnerability from github – Published: 2022-09-30 00:00 – Updated: 2022-10-01 00:00Use After Free in GitHub repository vim/vim prior to 9.0.0614.
{
"affected": [],
"aliases": [
"CVE-2022-3352"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-29T12:15:00Z",
"severity": "HIGH"
},
"details": "Use After Free in GitHub repository vim/vim prior to 9.0.0614.",
"id": "GHSA-h6wf-grqm-q95x",
"modified": "2022-10-01T00:00:16Z",
"published": "2022-09-30T00:00:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3352"
},
{
"type": "WEB",
"url": "https://github.com/vim/vim/commit/ef976323e770315b5fca544efb6b2faa25674d15"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/d058f182-a49b-40c7-9234-43d4c5a29f60"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00032.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4QI7AETXBHPC7SGA77Q7O5IEGULWYET7"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GTBVD4J2SKVSWK4VBN5JP5OEVK6GDS3N"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LSSEWQLK55MCNT4Z2IIJEJYEI5HLCODI"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202305-16"
}
],
"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-H72V-7C93-X76H
Vulnerability from github – Published: 2024-05-03 03:31 – Updated: 2024-05-03 03:31PDF-XChange Editor JPG File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange 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 parsing of JPG files. 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-21944.
{
"affected": [],
"aliases": [
"CVE-2023-42082"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T03:15:44Z",
"severity": "HIGH"
},
"details": "PDF-XChange Editor JPG File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange 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 parsing of JPG files. 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-21944.",
"id": "GHSA-h72v-7c93-x76h",
"modified": "2024-05-03T03:31:01Z",
"published": "2024-05-03T03:31:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42082"
},
{
"type": "WEB",
"url": "https://www.tracker-software.com/support/security-bulletins.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-1384"
}
],
"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-H739-GQ5P-H6X4
Vulnerability from github – Published: 2024-01-23 09:30 – Updated: 2026-05-12 12:31In the Linux kernel through 6.7.1, there is a use-after-free in cec_queue_msg_fh, related to drivers/media/cec/core/cec-adap.c and drivers/media/cec/core/cec-api.c.
{
"affected": [],
"aliases": [
"CVE-2024-23848"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-23T09:15:35Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel through 6.7.1, there is a use-after-free in cec_queue_msg_fh, related to drivers/media/cec/core/cec-adap.c and drivers/media/cec/core/cec-api.c.",
"id": "GHSA-h739-gq5p-h6x4",
"modified": "2026-05-12T12:31:34Z",
"published": "2024-01-23T09:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-23848"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"type": "WEB",
"url": "https://lore.kernel.org/lkml/e9f42704-2f99-4f2c-ade5-f952e5fd53e5%40xs4all.nl"
}
],
"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"
}
]
}
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.