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.
Metrics
Affected Vendors & Products
References
History
Fri, 05 Jun 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mercusys
Mercusys ac12g |
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| Vendors & Products |
Mercusys
Mercusys ac12g |
Wed, 03 Jun 2026 23:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Router Admin Interface Exposed to Internet via UPnP AddPortMapping |
Wed, 03 Jun 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Unauthenticated WAN Exposure of Router Admin Interface via UPnP AddPortMapping | |
| Weaknesses | CWE-20 |
Wed, 03 Jun 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Unauthenticated WAN Exposure of Router Admin Interface via UPnP AddPortMapping | |
| Weaknesses | CWE-20 CWE-441 |
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| Metrics |
cvssV3_1
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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 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. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published: 2026-06-03T00:00:00.000Z
Updated: 2026-06-03T18:34:27.788Z
Reserved: 2026-04-06T00:00:00.000Z
Link: CVE-2026-36608
Updated: 2026-06-03T18:34:18.015Z
Status : Deferred
Published: 2026-06-03T18:16:21.923
Modified: 2026-06-04T15:41:35.193
Link: CVE-2026-36608
No data.