CVE-2022-2031: Samba

High severity, CVSS 8.8. EPSS: 1.2% chance of exploitation in the next 30 days.

A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other services.

Affected products

• Samba Samba: before 4.14.14 (fixed in 4.14.14); from 4.15.0, before 4.15.9 (fixed in 4.15.9); from 4.16.0, before 4.16.4 (fixed in 4.16.4)

Published 2022-08-25. Last modified 2026-06-17.