CVE-2026-9402 Edimax BR-6675nD POST Request formWlanMP command injection
Remote attackers can execute arbitrary commands on Edimax BR-6675nD routers via the formWlanMP POST handler due to improper input validation.
- 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-2026-9402?
CVE-2026-9402 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 vulnerability was found in Edimax BR-6675nD 1.12. The affected element is the function formWlanMP of the file /goform/formWlanMP of the component POST Request Handler. The manipulation of the argument ateFunc/ateGain/ateRate/ateChan/ateTxCount/e2pTx2Power1/e2pTx2Power2/e2pTx2Power3/e2pTx2Power4/e2pTx2Power5/e2pTx2Power6/e2pTx2Power7/e2pTxPower1/e2pTxPower2/e2pTxPower3/e2pTxPower4/e2pTxPower5/e2pTxPower6/e2pTxPower7/ateTxFreqOffset/ateMode/ateMacID/ateBW/ateAntenna/e2pTxFreqOffset/e2pTxPwDeltaB/e2pTxPwDeltaG/e2pTxPwDeltaMix/readE2P/e2pTxPwDeltaN results in command injection. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-9402?
How do I fix CVE-2026-9402?
No fix has been published for CVE-2026-9402 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-2026-9402 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9402 exists.
Sources
Also known as GHSA-r9fg-8xgr-43j8.