CVE-2020-29074

HIGH 8.8CVE-2020-29074 · Published 25/11/2020 · updated 17/06/2026

In short

CVE-2020-29074 is a HIGH (CVSS 8.8) vulnerability affecting x11vnc (x11vnc project).
Chance of exploitation in the next 30 days (EPSS): 1.8%, higher than 78.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
x11vnc x11vnc_project	`= 0.9.16`	No fix yet

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

Running one of these products? Scan your site to see whether it exposes a vulnerable version.