CVE-2005-0488: Microsoft Telnet Client

Medium severity, CVSS 5.0. EPSS: 17.1% chance of exploitation in the next 30 days.

Certain BSD-based Telnet clients, including those used on Solaris and SuSE Linux, allow remote malicious Telnet servers to read sensitive environment variables via the NEW-ENVIRON option with a SEND ENV_USERVAR command.

Affected products

• Microsoft Telnet Client: version 5.1.2600.2180 only
• Mit Kerberos 5: version 1.3.4 only
• Sun Sunos: version 5.9 only

Published 2005-06-14. Last modified 2026-06-16.