CVE-2018-20681: Mate-Desktop Mate-Screensaver

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

mate-screensaver before 1.20.2 in MATE Desktop Environment allows physically proximate attackers to view screen content and possibly control applications. By unplugging and re-plugging or power-cycling external output devices (such as additionally attached graphical outputs via HDMI, VGA, DVI, etc.) the content of a screensaver-locked session can be revealed. In some scenarios, the attacker can execute applications, such as by clicking with a mouse.

Affected products

• Mate-Desktop Mate-Screensaver: before 1.20.2 (fixed in 1.20.2)

Published 2019-01-09. Last modified 2026-06-17.