CVE-2020-29074: Debian Linux

High severity, CVSS 8.8. EPSS: 1.8% chance of exploitation in the next 30 days.

scan.c in x11vnc 0.9.16 uses IPC_CREAT|0777 in shmget calls, which allows access by actors other than the current user.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only
• Fedoraproject Fedora: version 32 only; version 33 only; version 34 only
• x11vnc Project x11vnc: version 0.9.16 only

Published 2020-11-25. Last modified 2026-06-17.