PT-2025-46761 · Linux+3 · Linux Kernel+3
CVE-2025-40204
·
Published
2025-08-18
·
Updated
2026-08-31
CVSS v3.1
8.1
High
| Vector | AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel’s SCTP implementation related to Message Authentication Code (MAC) comparison. The MAC comparison was not performed in constant time, potentially allowing for timing attacks. To address this, the MAC comparison was corrected to be constant-time by utilizing an appropriate helper function.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Ubuntu