CVE-2025-40631 | Icewarp Mail Server 11.4.0 HTTP Header Host http headers for scripting syntax

A vulnerability, which was classified as problematic, was found in Icewarp Mail Server 11.4.0. This affects an unknown part of the component HTTP Header Handler. The manipulation of the argument Host leads to improper neutralization of http headers for scripting syntax.

This vulnerability is uniquely identified as CVE-2025-40631. It is possible to initiate the attack remotely. There is no exploit available.