WAVLINK WN530H4/WN530HG4/WN572HG3 Front-End Authentication Page login.cgi Goto_chidx stack-based overflow

A vulnerability was found in WAVLINK WN530H4, WN530HG4 and WN572HG3 up to 20221028. It has been classified as critical. Affected is the function Goto_chidx of the file login.cgi of the component Front-End Authentication Page. The manipulation of the argument wlanUrl leads to stack-based buffer overflow. The attack can only be initiated within the local network. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.