"WinAgents TFTP Server for Windows is a fully-realized TFTP server for Windows 2000/XP. WinAgent's TFTP Server runs as a background task and doesn't require permanent attendance". WinAgent TFTP server contains a remotely exploitable condition that leads to the crashing of the server software, thereby a denial of service condition arises.
* WinAgent TFTP Server version 3.0
By simply requesting a file with an overly long filename string triggers the remote denial-of-service condition.
A sample proof-of-concept exploit code written in Perl is provided which can easily be used to test for this vulnerability:
# Remote D.O.S WinAgents TFTP Server ver 3.0
# Tftp.pl <Host>