CVE-2019-19520

7.8 highEPSS 1.3%

High (7.8) in openbsd openbsd. EPSS 1.3% chance of exploitation in the next 30 days.

xlock in OpenBSD 6.6 allows local users to gain the privileges of the auth group by providing a LIBGL_DRIVERS_PATH environment variable, because xenocara/lib/mesa/src/loader/loader.c mishandles dlopen.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 71% of CVEs (scores of 2026-10-31)
CWE: CWE-863
Published: 2019-12-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

openbsd:openbsd

References

http://packetstormsecurity.com/files/155572/Qualys-Security-Advisory-OpenBSD-Authentication-Bypass-Privilege-Escalation.html
http://seclists.org/fulldisclosure/2019/Dec/14
http://www.openwall.com/lists/oss-security/2019/12/04/5
http://www.openwall.com/lists/oss-security/2019/12/04/6
https://seclists.org/bugtraq/2019/Dec/8

Check your stack JSON