CVE-2026-9359 Edimax EW-7438RPn POST Request formHwSet command injection

Medium 5.3 Published Updated

Remote attackers can execute arbitrary commands on Edimax EW-7438RPn devices via crafted POST requests to the formHwSet handler.

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-2026-9359?

CVE-2026-9359 is a medium-severity command injection 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 identified in Edimax EW-7438RPn 1.28a. Affected by this vulnerability is the function formHwSet of the file /goform/formHwSet of the component POST Request Handler. The manipulation of the argument Anntena/Mcs/regDomain/nic0Addr/nic1Addr/wlanAddr/wanAddr/wlanSSID/wlanChan/comd/initgain/txcck/txofdm leads to command injection. The attack can be initiated remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2026-9359?

How do I fix CVE-2026-9359?

No fix has been published for CVE-2026-9359 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-9359 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9359 exists.

Sources

Also known as GHSA-6wph-6rqf-chq4.

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