CVE-2026-3613 | Wavlink WL-NU516U1 V240425 /cgi-bin/login.cgi sub_401A0C ipaddr stack-based overflow

A vulnerability was found in Wavlink WL-NU516U1 V240425 and classified as critical. This vulnerability affects the function sub_401A0C of the file /cgi-bin/login.cgi. Such manipulation of the argument ipaddr leads to stack-based buffer overflow.

This vulnerability is referenced as CVE-2026-3613. It is possible to launch the attack remotely. Furthermore, an exploit is available.

The vendor was contacted early about this disclosure.