CVE-2026-36605: Uncontrolled Resource Consumption

Mercusys AC12G EU V1 router with firmware AC12GEUV1200909 is vulnerable to a HTTP denial of service via a low number of crafted incomplete HTTP requests, causing a persistent crash that requires physical power cycling to recover...

CVE-2026-36604: Reliance on Reverse DNS Resolution for a Security-Critical Action

Mercusys AC12G EU V1 router with firmware AC12GEUV1200909 does not validate the HTTP Host header, enabling DNS rebinding attacks. An external attacker can rebind a domain to the router's internal IP address, extending the CORS wildcard vulnerability Access-Control-Allow-Origin: to...

CVE-2026-36613: Out-of-bounds Read

Mercusys AC12G EU V1 with firmware AC12GEUV1200909 returns 128 bytes of uninitialized internal buffer contents when receiving HTTP POST requests to undefined paths, exposing server state to unauthenticated adjacent network attackers...

CVE-2026-36615: Exposure of Sensitive Information to an Unauthorized Actor

Mercusys AC12G EU V1 with firmware AC12GEUV1200909 exposes an undocumented /agileconfigreset endpoint that returns internal buffer contents to unauthenticated attackers on the adjacent network...