uConfig agent in Compex NetPassage WPE54G router allows remote attackers to cause a denial of service (unresposiveness) via crafted datagrams to UDP port 7778.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24968
http://www.vupen.com/english/advisories/2006/0780
http://www.securityfocus.com/bid/16894
http://www.security.nnov.ru/Ldocument605.html