Buffer overflow in 3Com OfficeConnect Remote 812 ADSL Router 1.1.9.4 allows remote attackers to cause a denial of service (reboot or packet loss) via a long string containing Telnet escape characters to the Telnet port.
https://exchange.xforce.ibmcloud.com/vulnerabilities/16257
http://www.securityfocus.com/bid/10419
http://www.idefense.com/application/poi/display?id=105&type=vulnerabilities