NETGEAR DG834GT Wireless ADSL router running firmware 1.01.28 allows attackers to cause a denial of service (device hang) via a long string in the username field in the login window.
https://exchange.xforce.ibmcloud.com/vulnerabilities/28902
http://www.securityfocus.com/bid/19973
http://www.securityfocus.com/archive/1/445819/100/0/threaded