CVE-2023-3867: Linux Kernel

High severity, CVSS 7.1. EPSS: 5.4% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds read in smb2_sess_setup ksmbd does not consider the case of that smb2 session setup is in compound request. If this is the second payload of the compound, OOB read issue occurs while processing the first payload in the smb2_sess_setup().

Affected products

• Linux Linux Kernel: from 5.15, before 5.15.145 (fixed in 5.15.145); from 5.16, before 6.1.40 (fixed in 6.1.40); from 6.2, before 6.4.5 (fixed in 6.4.5)

Published 2025-08-16. Last modified 2026-08-15.