CVE-2026-36608: Unintended Proxy or Intermediary

Mercusys AC12G EU V1 router with firmware AC12GEUV1200909 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 intern...

CVE-2026-3870

A buffer overflow vulnerability in the UPnP AddPortMapping command in Zyxel VMG4005-B50B firmware versions through 5.13ABRL.5.4C0 could allow an adjacent attacker to trigger a temporary denial-of-service DoS condition affecting the UPnP function of the affected device...

CVE-2026-3870

Zyxel VMG4005-B50B firmware versions up to 5.13(ABRL.5.4)C0 contain a buffer overflow in the UPnP AddPortMapping() command. This vulnerability could allow an adjacent attacker to trigger a temporary denial-of-service (DoS) condition affecting the UPnP function of the device. The available documen...

CVE-2026-3870

A buffer overflow vulnerability in the UPnP AddPortMapping command in Zyxel VMG4005-B50B firmware versions through 5.13ABRL.5.4C0 could allow an adjacent attacker to trigger a temporary denial-of-service DoS condition affecting the UPnP function of the affected device...

CVE-2026-3870: Buffer Copy without Checking Size of Input

A buffer overflow vulnerability in the UPnP AddPortMapping command in Zyxel VMG4005-B50B firmware versions through 5.13ABRL.5.4C0 could allow an adjacent attacker to trigger a temporary denial-of-service DoS condition affecting the UPnP function of the affected device...

Exploit for CVE-2020-24586

Fracture FragAttacks WiFi Penetration Framework CVE-202...

CVE-2011-4503

The UPnP IGD implementation in Broadcom Linux on the Sitecom WL-111 allows remote attackers to establish arbitrary port mappings by sending a UPnP AddPortMapping action in a SOAP request to the WAN interface, related to an "external forwarding" vulnerability...