CVE-1999-0421: Slackware Linux

High severity, CVSS 7.2. EPSS: 1.6% chance of exploitation in the next 30 days.

During a reboot after an installation of Linux Slackware 3.6, a remote attacker can obtain root access by logging in to the root account without a password.

Affected products

• Slackware Slackware Linux: version 3.6 only

Published 1999-03-17. Last modified 2026-06-16.