Turning all screens off in Plasma-workspace and kscreenlocker while the lock screen is shown can result in the screen being unlocked when turning a screen on again.
https://bugzilla.opensuse.org/show_bug.cgi?id=964548
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177557.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177454.html
https://www.kde.org/info/security/advisory-20160209-1.txt
https://bugs.kde.org/show_bug.cgi?id=358125
Source: Mitre, NVD
Published: 2016-12-23
Updated: 2025-04-12
Base Score: 4.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 6.8
Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.00077