source: https://www.securityfocus.com/bid/7575/info

It has been reported that a problem with Verilink broadband routers exists in the handling of TFTP packets. Because of this, an attacker could potentially deny service to legitimate users of the network. 

https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/22596.zip