Tenda AC8v4 V16.03.34.06 has a stack overflow vulnerability. Affected by this vulnerability is the function setSchedWifi of the file /goform/openSchedWifi. The manipulation of the argument schedEndTime leads to stack-based buffer overflow.
https://github.com/Pr0b1em/IoT/blob/master/Tenda%20AC8v4%20V16.03.34.06.md