Buffer Overflow Vulnerability in Edimax EW-7438RPn
CVE-2026-9345

8.7HIGH

Key Information:

Vendor

Edimax

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9345?

A buffer overflow vulnerability has been identified in the Edimax EW-7438RPn device firmware versions up to 1.31. This flaw resides in the formWizSurvey function of the /goform/formWizSurvey component, where improper handling of user-supplied arguments (such as ssid, manualssid, ip, mask, and gateway) may lead to remote exploitation. The vulnerability allows an attacker to execute arbitrary code on the affected device, posing significant security risks. The issue has been made publicly known, and the vendor was notified but has not provided any response regarding a fix.

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-2026-9345 - Proof of Concept

References

https://vuldb.com/vuln/365308
vdb-entrytechnical-description
https://vuldb.com/vuln/365308/cti
signaturepermissions-required
https://vuldb.com/submit/813886
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
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 (VulDB User)
VulDB CNA Team
.