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

Summaryinfo

A vulnerability marked as critical has been reported in Edimax BR-6675nD 1.12. This impacts the function formHwSet of the file /goform/formHwSet of the component POST Request Handler. This manipulation of the argument regDomain/ABandregDomain/nic0Addr/nic1Addr/wlanAddr/inicAddr causes command injection. This vulnerability is handled as CVE-2026-9378. The attack can be initiated remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability has been found in Edimax BR-6675nD 1.12 and classified as critical. Affected by this vulnerability is the function formHwSet of the file /goform/formHwSet of the component POST Request Handler. The manipulation of the argument regDomain/ABandregDomain/nic0Addr/nic1Addr/wlanAddr/inicAddr 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.

The advisory is shared at lavender-bicycle-a5a.notion.site. This vulnerability is known as CVE-2026-9378. The exploitation appears to be easy. The attack can be launched remotely. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1202 for this issue.

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-2026-31588). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Edimax

Name

• BR-6675nD

Version

• 1.12

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Accepted

• Submit #811555: EDIMAX BR-6675nD BR-6675nD v1.12 Command Injection (by yhryhryhr_miemie)

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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