CVE-2026-9400 Edimax BR-6675nD POST Request formUSBStorage command injection
Remote attackers can execute arbitrary commands on Edimax BR-6675nD routers via the formUSBStorage handler, posing a critical security risk.
- 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-2026-9400?
CVE-2026-9400 is a medium-severity command injection vulnerability in Edimax BR-6675nD, 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 BR-6675nD 1.12. This issue affects the function formUSBStorage of the file /goform/formUSBStorage of the component POST Request Handler. Executing a manipulation of the argument sub_dir can lead to command injection. It is possible to launch the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-9400?
How do I fix CVE-2026-9400?
No fix has been published for CVE-2026-9400 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-2026-9400 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9400 exists.
Sources
Also known as GHSA-53r7-38m4-hpmp.