The remote host is vulnerable to a Denial of Service (DoS) / Code Execution attack
The remote host is running a version of Apache2 for Win32 which is older than 2.0.44. There are several flaws pre-2.0.44 which may allow an attacker to crash this host or even execute arbitrary code remotely. However, these bugs only affect WindowsME and Windows9x.
Upgrade to Apache 2.0.44 or higher.