CVE-2026-23364

HIGH

ksmbd: Compare MACs in constant time

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Compare MACs in constant time To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp() with the correct function, crypto_memneq().

Scores

CVSS v3 7.4
EPSS 0.0005
EPSS Percentile 15.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Details

Status published
Products (20)
linux/Kernel 5.15.0 - 6.1.167linux
linux/Kernel 6.13.0 - 6.18.19linux
linux/Kernel 6.19.0 - 6.19.7linux
linux/Kernel 6.2.0 - 6.6.130linux
linux/Kernel 6.7.0 - 6.12.78linux
Linux/Linux < 5.15
Linux/Linux 5.15
Linux/Linux 6.1.167 - 6.1.*
Linux/Linux 6.12.78 - 6.12.*
Linux/Linux 6.18.19 - 6.18.*
... and 10 more
Published Mar 25, 2026
Tracked Since Mar 25, 2026