Edimax BR-6675nD 1.12 POST Request /goform/formWlanMP command injection

Summaryinfo

A vulnerability marked as critical has been reported in Edimax BR-6675nD 1.12. The impacted element is the function formWlanMP of the file /goform/formWlanMP of the component POST Request Handler. This 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 causes command injection. This vulnerability appears as CVE-2026-9402. The attack may be initiated remotely. In addition, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability classified as critical was found in Edimax BR-6675nD 1.12. Affected by this vulnerability 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 with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.

It is possible to read the advisory at lavender-bicycle-a5a.notion.site. This vulnerability is known as CVE-2026-9402. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

It is possible to download the exploit at lavender-bicycle-a5a.notion.site. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-31602). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Edimax

Name

• BR-6675nD

Version

• 1.12

CPE 2.3info

• 🔒

CPE 2.2info

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Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #811565: EDIMAX BR-6675nD BR-6675nD v1.12 Command Injection (by yhryhryhr_tu)

Be aware that VulDB is the high quality source for vulnerability data.

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