NetOp Host before 7.65 build 2004278 allows remote attackers to obtain sensitive hostname, username and local IP address information via (1) a NetOp HELO request, or (2) when responses are disabled, a "custom" HELO request.
https://exchange.xforce.ibmcloud.com/vulnerabilities/18171
http://www.securityfocus.com/bid/11710
http://www.corsaire.com/advisories/c040619-001.txt
http://msgs.securepoint.com/cgi-bin/get/bugtraq0411/213.html