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CVE-2025-40331

HIGHCVSS 7.8/10EPSS 0.21%

Last modified

CVE-2025-40331 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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).. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

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).

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.21%

11.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 8f840e47f190cbe61a96945c13e9551048d42cef, < b106a68df0650b694b254427cd9250c04500edd3; >= 8f840e47f190cbe61a96945c13e9551048d42cef, < 3006959371007fc2eae4a078f823c680fa52de1a; >= 8f840e47f190cbe61a96945c13e9551048d42cef, < 72e3fea68eac8d088e44c3dd954e843478e9240e; >= 8f840e47f190cbe61a96945c13e9551048d42cef, < 584307275b2048991b2e8984962189b6cc0a9b85; >= 8f840e47f190cbe61a96945c13e9551048d42cef, < c9119f243d9c0da3c3b5f577a328de3e7ffd1b42; >= 8f840e47f190cbe61a96945c13e9551048d42cef, < 2fe08fcaacb7eb019fa9c81db39b2214de216677; >= 8f840e47f190cbe61a96945c13e9551048d42cef, < 89eac1e150dbd42963e13d23828cb8c4e0763196; >= 8f840e47f190cbe61a96945c13e9551048d42cef, < 95aef86ab231f047bb8085c70666059b58f53c09
LinuxLinux4.7

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2025-40331?
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).
How severe is CVE-2025-40331?
CVE-2025-40331 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2025-40331?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST