GSW_SSHD is "a well known commercial SSH server which acts as SSH tunnel for the telnet server GS_Tnet.exe". Multiple vulnerabilities have been discovered in GSW_SSHD, these vulnerabilities allows remote attackers to overflow internal buffers found in the product as well as initiate a format string attack against it.

http://www.securiteam.com/windowsntf...AP010UN5Y.html