The Tenda TX9 V22.03.02.20 firmware has a stack overflow vulnerability in the sub_42EEE0 function of the file /goform/SetStaticRouteCfg.
https://www.tendacn.com/download/detail-4515.html
https://gitee.com/GXB0_0/iot-vul/blob/master/Tenda/TX9/20/SetStaticRouteCfg.md