Stack-Based Buffer Overflow in Edimax EW-7438RPn by Edimax
CVE-2026-9344

8.7HIGH

Key Information:

Vendor

Edimax

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9344?

A security vulnerability in the Edimax EW-7438RPn exists, affecting versions up to 1.31. This vulnerability is located in the /goform/formWpsStart function of the device's web interface. An attacker can exploit this vulnerability by manipulating the pinCode and wlan-url arguments, leading to a stack-based buffer overflow. This flaw can be triggered remotely, allowing unauthorized access and control over the affected device. Despite being reported to the vendor, no further action or acknowledgment has been provided.

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-2026-9344 - Proof of Concept

References

https://vuldb.com/vuln/365307
vdb-entrytechnical-description
https://vuldb.com/vuln/365307/cti
signaturepermissions-required
https://vuldb.com/submit/813885
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
.