Personal FTP Server RETR Command Remote Denial of Service Vulnerability

Summary
The host is running Personal FTP Server, which is prone to denial of service vulnerability.
Impact
Successful exploitation will deny the service by sending multiple RETR commands with an arbitrary argument. Impact Level : Application
Solution
No solution or patch was made available for at least one year since disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one. For updates refer to http://www.michael-roth-software.de/new/Produkte.html
Insight
This issue is due to an error when handling the RETR command.
Affected
Michael Roth Personal FTP Server 6.0f and prior on Windows (all).
References