Tenda AX3 Buffer Overflow Vulnerability (CNVD-2022-12735)

Tenda Ax3 is an Ax1800 gigabit port dual-band Wifi 6 wireless router from Tenda (China).A buffer overflow vulnerability exists in Tenda AX3 v16.03.12.10_CN, which stems from the existence of a stack overflow due to incorrect checksum time parameters in the function savparentcontrolinfo. An attacker can cause a denial of service on the router by constructing a malicious time parameter.