OS Command Injection Vulnerability in Edimax EW-7438RPn Router
CVE-2026-9347

5.3MEDIUM

Key Information:

Vendor

Edimax

Status
Ew-7438rpn
Vendor
CVE Published:
24 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9347?

A vulnerability has been discovered in the Edimax EW-7438RPn router affecting versions up to 1.31. The issue resides in the function formWizSurvey located in the /goform/formWizSurvey file, where improper handling of the arguments ip, mask, and gateway can lead to OS command injection. This flaw allows an attacker to execute arbitrary commands on the device remotely. The exploit has been publicly disclosed, raising serious security concerns, particularly since the vendor has not responded to initial notifications regarding the issue.

Affected Version(s)

EW-7438RPn 1.0

EW-7438RPn 1.1

EW-7438RPn 1.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-9347 - Proof of Concept

References

https://vuldb.com/vuln/365310
vdb-entrytechnical-description
https://vuldb.com/vuln/365310/cti
signaturepermissions-required
https://vuldb.com/submit/813889
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Bond_yes (VulDB User)
VulDB CNA Team
.