What’s Vulnerable › Vulnerabilities

CVE-2011-2187

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-11-27 · updated 2026-06-16
• Weakness: CWE-306

Description

xscreensaver before 5.14 crashes during activation and leaves the screen unlocked when in Blank Only Mode and when DPMS is disabled, which allows local attackers to access resources without authentication.

Affected products

• Debian Linux: 8.0, 9.0, 10.0
• Xscreensaver Project Xscreensaver: before 5.14 — fixed in 5.14

How to fix

Upgrade to a fixed version: Xscreensaver Project Xscreensaver 5.14. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/security/cve/cve-2011-2187
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627382
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2187
• https://security-tracker.debian.org/tracker/CVE-2011-2187
• https://www.jwz.org/xscreensaver/changelog.html
• https://www.openwall.com/lists/oss-security/2011/06/06/17
• https://access.redhat.com/security/cve/cve-2011-2187
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627382
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2187
• https://security-tracker.debian.org/tracker/CVE-2011-2187
• https://www.jwz.org/xscreensaver/changelog.html
• https://www.openwall.com/lists/oss-security/2011/06/06/17

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