Multiple cross-site request forgery (CSRF) vulnerabilities on the ZyXEL P-660HW series router allow remote attackers to (1) change DNS servers and (2) add keywords to the "bannedlist" via unspecified vectors.
https://exchange.xforce.ibmcloud.com/vulnerabilities/41111
http://www.securityfocus.com/archive/1/489009/100/0/threaded