CVE-2001-1166: Freebsd

Medium severity, CVSS 5.0. EPSS: 1.4% chance of exploitation in the next 30 days.

linprocfs on FreeBSD 4.3 and earlier does not properly restrict access to kernel memory, which allows one process with debugging rights on a privileged process to read restricted memory from that process.

Affected products

• Freebsd Freebsd: version 4.0 only; version 4.1 only; version 4.2 only; version 4.3 only

Published 2001-08-21. Last modified 2026-06-16.