Edimax BR-6428nC up to 1.16 Web Interface /goform/setWAN pppUserName/pptpUserName command injection

Summaryinfo

A vulnerability was found in Edimax BR-6428nC up to 1.16. It has been declared as critical. This impacts an unknown function of the file /goform/setWAN of the component Web Interface. Such manipulation of the argument pppUserName/pptpUserName leads to command injection. This vulnerability is uniquely identified as CVE-2026-7683. The attack can be launched remotely. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in Edimax BR-6428nC up to 1.16 and classified as critical. Affected by this issue is some unknown processing of the file /goform/setWAN of the component Web Interface. The manipulation of the argument pppUserName/pptpUserName with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The advisory is available at tzh00203.notion.site. This vulnerability is handled as CVE-2026-7683. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

The exploit is available at tzh00203.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-2026-26821). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Edimax

Name

• BR-6428nC

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #801597: Edimax BR-6428nC v1.16 v1.16 Command Injection (by tian)

Duplicate

• Submit #XXXXXX: Xxxxxx Xx-xxxxxx Xx.xx Xx.xx Xxxxxxx Xxxxxxxxx (by tian)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion