CVE-2000-0786: GNU Userv

Medium severity, CVSS 4.6. EPSS: 0.3% chance of exploitation in the next 30 days.

GNU userv 1.0.0 and earlier does not properly perform file descriptor swapping, which can corrupt the USERV_GROUPS and USERV_GIDS environmental variables and allow local users to bypass some access restrictions.

Affected products

• GNU Userv: version 1.0.0 only

Published 2000-10-20. Last modified 2026-06-16.