CVE-2026-9440 Edimax BR-6478AC POST Request formAccept command injection
Remote attackers can execute arbitrary commands on Edimax BR-6478AC routers via a command injection vulnerability in the POST request 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-2026-9440?
CVE-2026-9440 is a medium-severity command injection vulnerability in Edimax BR-6478AC, published on 25 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 BR-6478AC 1.23. Affected by this vulnerability is the function formAccept of the file /goform/formAccept of the component POST Request Handler. Such manipulation of the argument submit-url leads to command injection. It is possible to launch the attack 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.
Which versions are affected by CVE-2026-9440?
How do I fix CVE-2026-9440?
No fix has been published for CVE-2026-9440 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-2026-9440 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9440 exists.
Sources
Also known as GHSA-pw48-m69f-6jgc.