This vulnerability involves a stack-based buffer overflow in the fromWrlclientSet function of the Tenda FH1202 router firmware version 1.2.0.14. The flaw exists in the handling of the Go argument within the /goform/WrlclientSet endpoint of the httpd service. Remote attackers can exploit this vulnerability without user interaction or privileges, potentially leading to memory corruption. The CVSS 4.0 base score is 8.7, reflecting high severity due to network attack vector, low attack complexity, no privileges required, and high impact on confidentiality, integrity, and availability. No patch or official remediation level has been documented, and no known exploits in the wild have been reported.

Successful exploitation can lead to a stack-based buffer overflow, which may allow remote attackers to execute arbitrary code or cause denial of service on affected devices. The vulnerability impacts confidentiality, integrity, and availability of the device. Given the high CVSS score and remote attack vector, this poses a significant risk to affected Tenda FH1202 devices running version 1.2.0.14.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider limiting network exposure of the affected device, such as restricting remote access to the management interface. Monitor vendor channels for updates and apply patches promptly once available.