CVE-2022-46343: Debian Linux

High severity, CVSS 8.8. EPSS: 2.5% chance of exploitation in the next 30 days.

A vulnerability was found in X.Org. This security flaw occurs because the handler for the ScreenSaverSetAttributes request may write to memory after it has been freed. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

Affected products

• Debian Debian Linux: version 11.0 only
• Fedoraproject Fedora: version 36 only; version 37 only
• X.org X Server: version 1.20.4 only

Published 2022-12-14. Last modified 2026-06-17.