The remote host is vulnerable to a Denial of Service (DoS) attack.
The remote host is running BNBT EasyTracker, a packaged BitTorrent tracker installer for Windows. The remote version of BNBT EasyTracker fails to properly handle malformed HTTP requests, making it prone to denial of service attacks. An attacker can crash the application by sending a request with a header line consisting of only a ':'.
No solution is known at this time.