CVE-2026-36610

Medium severity, CVSS 5.9. EPSS: 0.2% chance of exploitation in the next 30 days.

Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 transmits DDNS credentials over plaintext HTTP with only Base64 encoding. The firmware contains no TLS implementation, allowing man-in-the-middle interception of DDNS service credentials.

Published 2026-06-03. Last modified 2026-07-22.