There is a command injection vulnerability in the Tenda G103 Gigabit GPON Terminal with firmware version V1.0.0.5. If an attacker gains web management privileges, they can inject commands gaining shell privileges.
https://github.com/D2y6p/CVE/blob/main/tenda/CVE-2023-33530/RCE2/tenda_G103_RCE_2.pdf