CVE-2026-36607

HighCVSS 8.8/10Last modified Jul 22, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-307

Affected software

No affected versions have been published.

Timeline

Published
Jun 3, 2026
Last modified
Jul 22, 2026
NVD status
Deferred

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CVE-2026-36607: High severity, CVSS 8.8 | Vulnix