CVE-1999-1438: Sun Sunos

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

Vulnerability in /bin/mail in SunOS 4.1.1 and earlier allows local users to gain root privileges via certain command line arguments.

Affected products

• Sun Sunos: up to and including 4.1.1; version 4.0.3 only; version 4.1 only

Published 1991-02-22. Last modified 2026-06-16.