CVE-2001-1443: Kth Kerberos

Medium severity, CVSS 5.0. EPSS: 1.1% chance of exploitation in the next 30 days.

KTH Kerberos IV and Kerberos V (Heimdal) for Telnet clients do not encrypt connections if the server does not support the requested encryption, which allows remote attackers to read communications via a man-in-the-middle attack.

Affected products

• Kth Kth Kerberos: version 4 only; version 5 only

Published 2001-08-27. Last modified 2026-06-16.