CVE-2026-36602 Information disclosure in n/a

Medium 4.3 Published Updated

An unauthenticated attacker on the adjacent network can leak kernel memory layout via UPnP, aiding further exploitation of Mercusys routers.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-36602?

CVE-2026-36602 is a medium-severity vulnerability in n/a, published on 3 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Mercusys AC12G (EU) V1 router with firmware AC12G(EU)_V1_200909 discloses kernel memory layout via the UPnP GetStatusInfo action. An unauthenticated attacker on the adjacent network can obtain a raw MIPS KSEG0 kernel pointer, revealing kernel memory layout and aiding further exploitation.

Weakness: CWE-200

Which versions are affected by CVE-2026-36602?

How do I fix CVE-2026-36602?

No fix has been published for CVE-2026-36602 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-36602 being exploited?

There is no known exploitation of CVE-2026-36602 in the wild and no public exploit code.

Sources

Also known as GHSA-j3qc-9q9j-gxw3.

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