Multiple buffer overflows in the web interface on the D-Link DI-524 router allow remote attackers to cause a denial of service (device crash) or possibly have unspecified other impact via (1) a long username or (2) an HTTP header with a large name and an empty value.
https://exchange.xforce.ibmcloud.com/vulnerabilities/41125
http://www.securityfocus.com/bid/28439
http://www.securityfocus.com/archive/1/489009/100/0/threaded
http://www.gnucitizen.org/projects/router-hacking-challenge/