CVE-2001-1474: SSH

Medium severity, CVSS 5.0. EPSS: 1.2% chance of exploitation in the next 30 days.

SSH before 2.0 disables host key checking when connecting to the localhost, which allows remote attackers to silently redirect connections to the localhost by poisoning the client's DNS cache.

Affected products

• SSH SSH: version 1.2.24 only; version 1.2.25 only; version 1.2.26 only; version 1.2.27 only; version 1.2.28 only; version 1.2.29 only; …

Published 2001-01-18. Last modified 2026-06-16.