Shenzen Tenda Technology IP Camera CP3 V11.10.00.2211041355 was discovered to contain a hard-coded default password for root which is stored using weak encryption. This vulnerability allows attackers to connect to the TELNET service (or UART) by using the exposed credentials.
https://github.com/SECloudUNIMORE/ACES/blob/master/Tenda/CP3/tmp_RRA.md
https://github.com/SECloudUNIMORE/ACES/blob/master/Tenda/CP3/tmp_PRA.md