CVE-2001-1475: SSH

High severity, CVSS 7.5. EPSS: 1.5% chance of exploitation in the next 30 days.

SSH before 2.0, when using RC4 and password authentication, allows remote attackers to replay messages until a new server key (VK) is generated.

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.