CVE-2016-2312

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Summary

CVECVE-2016-2312
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-12-23 22:59:00 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionTurning 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.

Risk And Classification

Primary CVSS: v3.0 6.8 MEDIUM from [email protected]

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.000770000 probability, percentile 0.228900000 (date 2026-05-11)

Problem Types: CWE-254 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary6.8MEDIUMCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.0 Breakdown

Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:L/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 22 All All All
Operating System Fedoraproject Fedora 23 All All All
Application Kde Kscreenlocker All All All All
Application Kde Plasma-workspace All All All All
Operating System Opensuse Leap 42.1 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
www.kde.org/info/security/advisory-20160209-1.txt af854a3a-2127-422b-91ae-364da2661108 www.kde.org Vendor Advisory
[SECURITY] Fedora 22 Update: kscreenlocker-5.5.4-3.fc22 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Third Party Advisory
[SECURITY] Fedora 23 Update: kscreenlocker-5.5.4-3.fc23 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Third Party Advisory
358125 – the lock-up can be pass through without typing password af854a3a-2127-422b-91ae-364da2661108 bugs.kde.org Vendor Advisory
Bug 964548 – VUL-1: KDE lockscreen bypass by switching display off and on af854a3a-2127-422b-91ae-364da2661108 bugzilla.opensuse.org Issue Tracking, Third Party Advisory
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