This indicates an attack attempt to exploit a Remote Code Execution vulnerability in TurboSoft TurboFTP Server.
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application when handling a crafted PORT command. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted PORT command.
TurboSoft TurboFTP 1.30.823
TurboSoft TurboFTP 1.30.826
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are unaware of any vendor supplied patch or updates available for this issue.