Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows unauthenticated brute-force attacks via the TDDP password change endpoint (code=10), which lacks the rate limiting applied to the login endpoint (code=7). An attacker on the adjacent network can attempt unlimited passwords without triggering account lockout.
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 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Unauthenticated Brute‑Force via Unrestricted Password Change Endpoint on Mercusys AC12G Router | |
| Weaknesses | CWE-400 |
Wed, 03 Jun 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
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Wed, 03 Jun 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Unauthenticated Brute‑Force via Unrestricted Password Change Endpoint on Mercusys AC12G Router | |
| Weaknesses | CWE-307 CWE-400 |
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 unauthenticated brute-force attacks via the TDDP password change endpoint (code=10), which lacks the rate limiting applied to the login endpoint (code=7). An attacker on the adjacent network can attempt unlimited passwords without triggering account lockout. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published: 2026-06-03T00:00:00.000Z
Updated: 2026-06-03T18:31:26.060Z
Reserved: 2026-04-06T00:00:00.000Z
Link: CVE-2026-36607
Updated: 2026-06-03T18:31:23.385Z
Status : Deferred
Published: 2026-06-03T18:16:21.797
Modified: 2026-06-04T15:41:35.193
Link: CVE-2026-36607
No data.