CVE-1999-0304: Bsdi Bsd OS

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

mmap function in BSD allows local attackers in the kmem group to modify memory through devices.

Affected products

• Bsdi Bsd OS: version 3.0 only
• Freebsd Freebsd: version 2.2 only
• Netbsd Netbsd: version 2.0.4 only
• OpenBSD OpenBSD: version 2.2 only

Published 1998-02-01. Last modified 2026-06-16.