CVE-2021-20316: Debian Linux

Medium severity, CVSS 6.8. EPSS: 1% chance of exploitation in the next 30 days.

A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.

Affected products

• Debian Debian Linux: version 10.0 only; version 11.0 only
• Red Hat Enterprise Linux: version 8.0 only
• Red Hat Enterprise Linux Aus: version 8.6 only
• Red Hat Enterprise Linux Eus: version 8.6 only
• Red Hat Enterprise Linux Tus: version 8.6 only
• Red Hat Virtualization Host: version 4.0 only
• Samba Samba: before 4.15.0 (fixed in 4.15.0)

Published 2022-08-23. Last modified 2026-06-17.