CVE-2026-75501 CVE-2026-75501

A vulnerability in the Calix EXOS firmware for the GS7 XGS GS5239XG residential router allows unauthenticated remote attackers to modify NAT port‑forwarding rules via the UPnP WANIPConnection service. The device exposes the MiniUPnPd control endpoint on the WAN interface on TCP port 5000 without...

EUVD-2026-63988

A vulnerability in the Calix EXOS firmware for the GS7 XGS GS5239XG residential router allows unauthenticated remote attackers to modify NAT port‑forwarding rules via the UPnP WANIPConnection service. The device exposes the MiniUPnPd control endpoint on the WAN interface on TCP port 5000 without...

CVE-2026-75501

The Calix GS7 XGS (GS5239XG) residential router running firmware EXOS/6.6.47 exposes its MiniUPnPd 2.3.7 UPnP WANIPConnection SOAP service on the public WAN interface at TCP port 5000 without any authentication. An unauthenticated remote attacker can send crafted SOAP requests to add, delete, or ...

Calix GS7 XGS GS5239XG residential router contains missing authentication vulnerability

Overview The Calix GS7 XGS GS5239XG router running firmware EXOS/6.6.47 contains a missing authentication vulnerability that exposes its UPnP Universal Plug and Play WANIPConnection service on the public WAN interface. Description Calix GS7 XGS GS5239XG is a residential gateway that provides...