CVE-2026-7683 Edimax BR-6428nC Web setWAN command injection

Medium 5.3 Published Updated

Remote attackers can execute arbitrary commands on Edimax BR-6428nC routers via the Web interface, requiring authentication.

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-2026-7683?

CVE-2026-7683 is a medium-severity command injection vulnerability in Edimax BR-6428nC, published on 3 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A weakness has been identified in Edimax BR-6428nC up to 1.16. This affects an unknown function of the file /goform/setWAN of the component Web Interface. This manipulation of the argument pppUserName/pptpUserName causes command injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. 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-2026-7683?

How do I fix CVE-2026-7683?

No fix has been published for CVE-2026-7683 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-2026-7683 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7683 exists.

Sources

Also known as GHSA-vvf2-q989-ccq7.

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