Tenda AC20 httpd setPptpUserList formSetPPTPUserList stack-based overflow

A vulnerability was identified in Tenda AC20 16.03.08.12. The affected element is the function formSetPPTPUserList of the file /goform/setPptpUserList of the component httpd. Such manipulation of the argument list leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used.