In the Linux kernel, the following vulnerability has been resolved: sctp: Prevent TOCTOU out-of-bounds write For the following path not holding the sock lock, sctp_diag_dump() -> sctp_for_each_endpoint() -> sctp_ep_dump() make sure not to exceed bounds in case the address list has grown between buffer allocation (time-of-check) and write (time-of-use).

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00201.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

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References
Link Providers
https://git.kernel.org/stable/c/2fe08fcaacb7eb019fa9c81db39b2214de216677 cve-icon cve-icon
https://git.kernel.org/stable/c/3006959371007fc2eae4a078f823c680fa52de1a cve-icon cve-icon
https://git.kernel.org/stable/c/584307275b2048991b2e8984962189b6cc0a9b85 cve-icon cve-icon
https://git.kernel.org/stable/c/72e3fea68eac8d088e44c3dd954e843478e9240e cve-icon cve-icon
https://git.kernel.org/stable/c/89eac1e150dbd42963e13d23828cb8c4e0763196 cve-icon cve-icon
https://git.kernel.org/stable/c/95aef86ab231f047bb8085c70666059b58f53c09 cve-icon cve-icon
https://git.kernel.org/stable/c/b106a68df0650b694b254427cd9250c04500edd3 cve-icon cve-icon
https://git.kernel.org/stable/c/c9119f243d9c0da3c3b5f577a328de3e7ffd1b42 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025120910-CVE-2025-40331-ee3c@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-40331 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-40331 cve-icon
History

Tue, 16 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 10 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important

Tue, 09 Dec 2025 04:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: sctp: Prevent TOCTOU out-of-bounds write For the following path not holding the sock lock, sctp_diag_dump() -> sctp_for_each_endpoint() -> sctp_ep_dump() make sure not to exceed bounds in case the address list has grown between buffer allocation (time-of-check) and write (time-of-use).
Title sctp: Prevent TOCTOU out-of-bounds write
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-16T19:58:14.829Z

Reserved: 2025-04-16T07:20:57.186Z

Link: CVE-2025-40331

cve-icon Vulnrichment

Updated: 2026-06-16T19:58:10.002Z

cve-icon NVD

Status : Deferred

Published: 2025-12-09T16:17:43.247

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-40331

cve-icon Redhat

Severity : Important

Publid Date: 2025-12-09T00:00:00Z

Links: CVE-2025-40331 - Bugzilla

cve-icon OpenCVE Enrichment

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