The remote host is vulnerable to a buffer overflow.
The remote host is running a version of Vypress Messenger, that is vulnerable to a remote buffer overflow. An attacker exploiting this flaw would only need to be able to send a message or file to the Vypress service (listens on port 7777 by default). A successful exploit would allow the remote attacker the ability to overwrite and control the program's memory.
Upgrade to version 4.0 or higher.