What is GHSA-66mf-3gg5-cm75?

GHSA-66mf-3gg5-cm75 is a security advisory published by GitHub Security Advisories with High severity. Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows unauthenticated brute...

Which CVE IDs does GHSA-66mf-3gg5-cm75 cover?

GHSA-66mf-3gg5-cm75 covers the following CVE IDs: CVE-2026-36607. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-66mf-3gg5-cm75?

GHSA-66mf-3gg5-cm75 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-66mf-3gg5-cm75HighCVSS 8.8

Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 allows unauthenticated brute...

Vendor

GitHub Security Advisories

Published

June 3, 2026

Last Modified

June 3, 2026

🔗 CVE IDs covered (1)

CVE-2026-36607 →

📋 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 (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-36607
https://github.com/Tymbark7372/MERCUSYS-AC12G/blob/master/advisories/CVE-2026-36607.md
https://github.com/advisories/GHSA-66mf-3gg5-cm75