Stack-Based Buffer Overflow Vulnerability in Edimax EW-7438RPn
CVE-2026-9425

8.7HIGH

Key Information:

Vendor

Edimax

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9425?

A significant vulnerability exists in the Edimax EW-7438RPn 1.31 related to a stack-based buffer overflow in the formWlanMP function. This flaw is triggered through manipulation of multiple parameters, enabling remote attackers to exploit the device's memory. With public disclosure of this exploit, users and organizations are at risk of unauthorized access and control over their network devices. Despite early notifications to Edimax, there was no response from the vendor regarding this critical issue.

Affected Version(s)

EW-7438RPn 1.31

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-2026-9425 - Proof of Concept

References

https://vuldb.com/vuln/365406
vdb-entrytechnical-description
https://vuldb.com/vuln/365406/cti
signaturepermissions-required
https://vuldb.com/submit/813892
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_yes (VulDB User)
VulDB CNA Team
.