Directory traversal vulnerability in TYPSoft FTP server 0.97.1 and earlier allows a remote authenticated user (possibly anonymous) to list arbitrary directories via a .. in a LIST (ls) command ending in wildcard *.* characters.
Directory traversal vulnerability in TYPSoft FTP Server 0.99.8 allows local users to list the contents of arbitrary directories via a ... (dot dot dot) in the cd/CWD command.