Ipswitch IMail Server < 2006.21 Multiple Vulnerabilities
Critical Nessus Plugin ID 25737
The remote mail server is affected by multiple vulnerabilities.
The remote host is running Ipswitch IMail, a commercial messaging and collaboration suite for Windows. According to its banner, the version of Ipswitch IMail installed on the remote host has several buffer overflows in its IMAP service component, one of which can be exploited prior to authentication to execute arbitrary code with SYSTEM privileges. In addition, there is also a denial of service issue that can cause the IM Server to crash without authentication.
Upgrade to Ipswitch IMail version 2006.21 or later.