Tenda AC8v4 Stack-Based Buffer Overflow Vulnerability in openSchedWifi Function

A stack-based buffer overflow vulnerability has been identified in the Tenda AC8v4 router, specifically in version 16.03.34.06. The issue arises in the function setSchedWifi within the file /goform/openSchedWifi. The vulnerability is triggered by manipulating the schedStartTime argument, leading to a stack overflow condition.

Impact

Exploitation of this vulnerability causes a stack-based buffer overflow, which can potentially be used to execute arbitrary code or cause a denial-of-service condition by crashing the device.