CVE-2006-0911: Ipswitch WhatsUp

Medium severity, CVSS 5.0. EPSS: 16.3% chance of exploitation in the next 30 days.

NmService.exe in Ipswitch WhatsUp Professional 2006 allows remote attackers to cause a denial of service (CPU consumption) via crafted requests to Login.asp, possibly involving the (1) "In]" and (2) "b;tnLogIn" parameters, or (3) malformed btnLogIn parameters, possibly involving missing "[" (open bracket) or "[" (closing bracket) characters, as demonstrated by "&btnLogIn=[Log&In]=&" or "&b;tnLogIn=[Log&In]=&" in the URL. NOTE: due to the lack of diagnosis by the original researcher, the precise nature of the vulnerability is unclear.

Affected products

• Ipswitch WhatsUp: version professional_2006 only

Published 2006-02-28. Last modified 2026-06-16.