CVE-2026-9346 Edimax EW-7438RPn webs formWirelessTbl buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the Edimax EW-7438RPn web interface via the submit-url argument, potentially leading to code execution.

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-2026-9346?

CVE-2026-9346 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 flaw has been found in Edimax EW-7438RPn up to 1.31. This impacts the function formWirelessTbl of the file /goform/formWirelessTbl of the component webs. Executing a manipulation of the argument submit-url can lead to buffer overflow. The attack may be performed from remote. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2026-9346?

How do I fix CVE-2026-9346?

No fix has been published for CVE-2026-9346 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-2026-9346 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9346 exists.

Sources

Also known as GHSA-w75f-j2p5-wgvr.

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