Edimax EW-7438RPn 1.28a POST Request /goform/formHwSet command injection

Summaryinfo

A vulnerability was found in Edimax EW-7438RPn 1.28a. It has been declared as critical. Affected by this issue is the function formHwSet of the file /goform/formHwSet of the component POST Request Handler. The manipulation of the argument Anntena/Mcs/regDomain/nic0Addr/nic1Addr/wlanAddr/wanAddr/wlanSSID/wlanChan/comd/initgain/txcck/txofdm results in command injection. This vulnerability is reported as CVE-2026-9359. 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, which was classified as critical, was found in Edimax EW-7438RPn 1.28a. Affected is the function formHwSet of the file /goform/formHwSet of the component POST Request Handler. The manipulation of the argument Anntena/Mcs/regDomain/nic0Addr/nic1Addr/wlanAddr/wanAddr/wlanSSID/wlanChan/comd/initgain/txcck/txofdm with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at lavender-bicycle-a5a.notion.site. This vulnerability is traded as CVE-2026-9359. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

The exploit is shared for download 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-2026-31570). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Edimax

Name

• EW-7438RPn

Version

• 1.28a

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #811540: EDIMAX EW-7438RPn Mini EW-7438RPn Mini Firmware 1.28a (Version : 1.28a) Command Injection (by yhryhryhr_miemie)

Duplicate

• Submit #XXXXXX: Xxxxxx Xx-xxxxxxx X.xx Xxxxxxx Xxxxxxxxx (by Bond_yes)

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

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