Rhino Software Serv-U 7.0.0.1 through 8.2.0.3 allows remote attackers to cause a denial of service (server crash) via unspecified vectors related to the "SITE SET TRANSFERPROGRESS ON" FTP command.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5798