CVE-2016-1336 in EPC3928
Summary
goform/Docsis_system on Cisco EPC3928 devices allows remote attackers to cause a denial of service (device crash) via a long LanguageSelect parameter, related to a "Gateway HTTP Corruption Denial of Service" issue, aka Bug ID CSCuy28100.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.