Tenda AX-1806 router version v1.0.0.1 contains a stack overflow vulnerability in the serviceName parameter of the sub_65A28 function. This vulnerability can be exploited by attackers through crafted requests to cause a Denial of Service (DoS) condition. The flaw represents a buffer overflow issue that could potentially allow attackers to disrupt router operations and network connectivity. The vulnerability has been assigned CVE-2025-70747 and affects the specific firmware version mentioned. Proof of concept details are available through security research documentation.