Hi, Various openssh 6.2p1 users including our administrators stumbled over this nice bug in the "nanossh server" during pre authentication phase within nanossh ( https://www.mocana.com/for-device-manufacturers/nanossh/ ) Bug at openssh bugzilla: https://bugzilla.mindrot.org/show_bug.cgi?id=2116 http://www.gossamer-threads.com/lists/openssh/bugs/55880 Basically if the HMAC list is unexpected long (>1) the remote nanossh daemon will crash. Unclear if code execution, but well, I would not bet against it. Also unclear if more than the listed Nortel switches are affected, or all nanossh deployers, but probably yes. Ciao, Marcus