CVE-1999-0963: Freebsd

High severity, CVSS 7.2. EPSS: 0.3% chance of exploitation in the next 30 days.

FreeBSD mount_union command allows local users to gain root privileges via a symlink attack.

Affected products

• Freebsd Freebsd: version 2.2 only

Published 1999-12-01. Last modified 2026-06-16.