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.
Metrics
Affected Vendors & Products
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References
History
Wed, 03 Jun 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Unauthenticated Port Mapping via UPnP on Mercusys AC12G Router | |
| Weaknesses | CWE-284 CWE-306 |
Wed, 03 Jun 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-06-03T16:23:02.499Z
Reserved: 2026-04-06T00:00:00.000Z
Link: CVE-2026-36603
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-06-03T18:16:21.290
Modified: 2026-06-03T18:16:21.290
Link: CVE-2026-36603
Redhat
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OpenCVE Enrichment
Updated: 2026-06-03T18:30:36Z