A stack-based buffer overflow vulnerability has been identified in Tenda F453 router firmware version 1.0.0.3/1.If. The vulnerability affects the fromSetCfm function in the /goform/setcfm file, where manipulation of the funcname/funcpara1 arguments can cause a buffer overflow. This vulnerability can be exploited remotely and the exploit code has been publicly disclosed, making it actively exploitable. The vulnerability allows attackers to potentially execute arbitrary code on affected devices. Multiple proof-of-concept exploits are available through public repositories and vulnerability databases.