Edimax EW-7438RPn up to 1.31 webs /goform/formWirelessTbl submit-url buffer overflow

Summaryinfo

A vulnerability was found in Edimax EW-7438RPn up to 1.31. It has been rated as critical. Affected is the function formWirelessTbl of the file /goform/formWirelessTbl of the component webs. The manipulation of the argument submit-url leads to buffer overflow. This vulnerability is traded as CVE-2026-9346. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. 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 rated as critical. This issue affects the function formWirelessTbl of the file /goform/formWirelessTbl of the component webs. The manipulation of the argument submit-url with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-9346. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known.

The exploit is available 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-202605-4914). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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 #813888: Edimax EW-7438RPn 1.31 Stack-based Buffer Overflow (by Bond)

Duplicate

• Submit #XXXXXX: Xxxxxx Xx-xxxxxxx Xxxx Xx-xxxxxxx Xxxx Xxxxxxxx X.xxx (xxxxxxx : X.xxx) Xxxxxx Xxxxxxxx (by yhryhryhr_miemie)

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

Discussion