CVE-2000-1103: Bsdi Bsd OS

High severity, CVSS 7.2. EPSS: 0.9% chance of exploitation in the next 30 days.

rcvtty in BSD 3.0 and 4.0 does not properly drop privileges before executing a script, which allows local attackers to gain privileges by specifying an alternate Trojan horse script on the command line.

Affected products

• Bsdi Bsd OS: version 3.0 only; version 3.1 only; version 4.0 only; version 4.0.1 only

Published 2001-01-09. Last modified 2026-06-16.