What is CVE-2006-0061?

CVE-2006-0061 is a critical-severity vulnerability in Sillycycle Xlockmore, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2019-11-06.

How severe is CVE-2006-0061?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Sillycycle Xlockmore

CVE-2006-0061

xlockmore 5.13 and 5.22 segfaults when using libpam-opensc and returns the underlying xsession. This allows unauthorized users access to the X session.

Vulnerability class: Broken Authentication

Published 2019-11-06 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.9th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Sillycycle Xlockmore — versions 5.13, 5.22

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

security-tracker.debian.org/tracker/CVE-2006-0061 (Third Party Advisory)
bugs.debian.org/cgi-bin/bugreport.cgi (Exploit, Patch, Third Party Advisory)
bugs.debian.org/cgi-bin/bugreport.cgi (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2006-0061?: CVE-2006-0061 is a critical-severity vulnerability in Sillycycle Xlockmore, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2019-11-06.
How severe is CVE-2006-0061?: Critical severity. CVSS v3 base score is 9.8 out of 10.