TRENDnet TEW-827DRU devices through 2.06B04 contain a stack-based buffer overflow in the ssi binary. The overflow allows an authenticated user to execute arbitrary code by POSTing to apply.cgi via the action set_sta_enrollee_pin_wifi1 (or set_sta_enrollee_pin_wifi0) with a sufficiently long wps_sta_enrollee_pin key.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14077
Reference (s):
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/TRENDnet-set_sta_enrollee.pdf
- https://github.com/kuc001/IoTFirmware/blob/master/Trendnet/TEW-827/set_sta_enrollee_pin_wifi_overflow.pdf