A vulnerability was found in Tenda AC18 15.03.05.05 and classified as critical. Affected by this issue is the function formSetSpeedWan of the file /goform/SetSpeedWan. The manipulation of the argument speed_dir leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-256892. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
https://vuldb.com/?ctiid.256892
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC18/setUsbUnload.md
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC18/SetSpeedWan.md