CVE-2006-2531: Ipswitch WhatsUp

High severity, CVSS 7.5. EPSS: 7.4% chance of exploitation in the next 30 days.

Ipswitch WhatsUp Professional 2006 only verifies the user's identity via HTTP headers, which allows remote attackers to spoof being a trusted console and bypass authentication by setting HTTP User-Agent header to "Ipswitch/1.0" and the User-Application header to "NmConsole".

Affected products

• Ipswitch WhatsUp: version professional_2006 only

Published 2006-05-22. Last modified 2026-06-16.