A stack-based buffer overflow vulnerability affects Tenda FH1202 router version 1.2.0.14. The vulnerability exists in the fromWrlclientSet function of the /goform/WrlclientSet file within the httpd component. Attackers can exploit this by manipulating the 'Go' argument parameter. The vulnerability allows for remote attacks and has been publicly disclosed with available exploits. This represents a high-severity security risk for affected router deployments.