CVE-2001-0061: Freebsd

High severity, CVSS 7.2. EPSS: 0.4% chance of exploitation in the next 30 days.

procfs in FreeBSD and possibly other operating systems does not properly restrict access to per-process mem and ctl files, which allows local users to gain root privileges by forking a child process and executing a privileged process from the child, while the parent retains access to the child's address space.

Affected products

• Freebsd Freebsd: version 3.5.1 only; version 4.1 only; version 4.1.1 only; version 4.2 only

Published 2001-02-12. Last modified 2026-06-16.