CVE-2001-0553: SSH Secure Shell

High severity, CVSS 7.2. EPSS: 1.3% chance of exploitation in the next 30 days.

SSH Secure Shell 3.0.0 on Unix systems does not properly perform password authentication to the sshd2 daemon, which allows local users to gain access to accounts with short password fields, such as locked accounts that use "NP" in the password field.

Affected products

• SSH Secure Shell: version 3.0.0 only

Published 2001-08-14. Last modified 2026-06-16.