CVE-2018-20681

Severity: medium (CVSS 6.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-01-09 · updated 2026-06-17
Weakness: CWE-200

Description

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

How to fix

Upgrade to a fixed version: mate-desktop Mate-Screensaver 1.20.2. Check the vendor advisory for mitigations.

References

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