CVE-2026-36613

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 returns 128 bytes of uninitialized internal buffer contents when receiving HTTP POST requests to undefined paths, exposing server state to unauthenticated adjacent network attackers.

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