CVE-2022-45141: Samba

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Since the Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability was disclosed by Microsoft on Nov 8 2022 and per RFC8429 it is assumed that rc4-hmac is weak, Vulnerable Samba Active Directory DCs will issue rc4-hmac encrypted tickets despite the target server supporting better encryption (eg aes256-cts-hmac-sha1-96).

Affected products

• Samba Samba: before 4.15.13 (fixed in 4.15.13); from 4.16.0, before 4.16.8 (fixed in 4.16.8)

Published 2023-03-06. Last modified 2026-06-17.