CVE-2026-36603
June 4, 2026, 3:41 p.m.
None
No Score
Description
Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 exposes 15 of 18 UPnP IGD actions without authentication on port 1900, including AddPortMapping and GetExternalIPAddress. UPnP is enabled by default through the admin interface, allowing any unauthenticated LAN device to create arbitrary port forwarding rules and access WAN traffic statistics.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Mercusys |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | mercusys | ac12g | AC12G(EU)_V1_200909 | / | / | / | / | / | / | / |
Tags
Timeline
Published: June 3, 2026, 6:16 p.m.
Last Modified: June 4, 2026, 3:41 p.m.
Last Modified: June 4, 2026, 3:41 p.m.
Status : Deferred
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.