CVE-2026-36608
HIGH NVDCVSS Score
8.8
Severity
HIGH
Source
NVD
Published
Jun 03, 2026
Description
Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows UPnP AddPortMapping to forward external ports to the router's own admin interface by accepting its own IP (192.168.1.1) or localhost (127.0.0.1) as InternalClient. An unauthenticated LAN attacker can expose the admin panel to the internet with a single SOAP request.