The remote host is vulnerable to a buffer overflow.
The remote host is running RaidenHTTPd. RaidenHTTPd is a web server that is designed for the Microsoft platform. This version of RaidenHTTPd is vulnerable to a flaw where an attacker can execute code as the SYSTEM user. An attacker exploiting this flaw would only need to send a URI request that exceeds 524 bytes.
Upgrade to RaidenHTTPd 1.1.33 or higher.