Edimax EW-7438RPn up to 1.31 webs /goform/formWpsStart pinCode/wlan-url stack-based overflow

Summaryinfo

A vulnerability was found in Edimax EW-7438RPn up to 1.31. It has been classified as critical. This affects an unknown function of the file /goform/formWpsStart of the component webs. Performing a manipulation of the argument pinCode/wlan-url results in stack-based overflow. This vulnerability is reported as CVE-2026-9344. The attack is possible to be carried out 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 EW-7438RPn up to 1.31. It has been classified as critical. This affects an unknown code block of the file /goform/formWpsStart of the component webs. The manipulation of the argument pinCode/wlan-url with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-9344. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known.

The exploit is shared for download at github.com. 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 CNNVD (CNNVD-202605-4915). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Edimax

Name

• EW-7438RPn

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
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #813885: Edimax EW-7438RPn 1.31 Stack-based Buffer Overflow (by Bond)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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