CVE-2026-9348 Edimax EW-7438RPn webs mp stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the Edimax EW-7438RPn web interface to execute arbitrary code.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-9348?

CVE-2026-9348 is a high-severity memory corruption vulnerability in Edimax EW-7438RPn, published on 24 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in Edimax EW-7438RPn up to 1.31. Affected by this vulnerability is an unknown functionality of the file /goform/mp of the component webs. The manipulation of the argument webs results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2026-9348?

How do I fix CVE-2026-9348?

No fix has been published for CVE-2026-9348 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-9348 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9348 exists.

Sources

Also known as GHSA-q3f6-qj3x-v67j.

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