Impact
A stack‑based buffer overflow vulnerability is present in the Web Management Interface of Tenda HG7HG9 and HG10 routers. The flaw affects the asp_voip_OtherSet function exposed at /boaform/voip_other_set. By manipulating the funckey_transfer argument, an attacker can overflow the stack, potentially enabling arbitrary code execution with the privileges of the web service. The weakness conforms to CWE‑119 and CWE‑121.
Affected Systems
The affected devices are Tenda HG7HG9 and HG10 routers running firmware version 300001_en_xpon, distributed by Tenda. The vulnerability resides in the web interface component and is triggered by requests to the voip_other_set endpoint.
Risk and Exploitability
The CVSS score of 8.7 indicates high severity, and the EPSS score of 4% suggests a moderate probability of exploitation in the wild. The flaw can be reached remotely via the router’s web management interface; the description does not specify that authentication is required, so the attack may be possible from any host that can connect to that service. The vulnerability is not currently listed in CISA’s KEV catalog, but its remote reach and high severity demand prompt remediation.
OpenCVE Enrichment