Tenda AC15 Cookie execCommand R7WebsSecurityHandler stack-based overflow

A vulnerability classified as critical has been found in Tenda AC15 15.03.20_multi. Affected is the function R7WebsSecurityHandler of the file /goform/execCommand of the component Cookie Handler. The manipulation of the argument password leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-257670 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.