Stack-based Buffer Overflow in Edimax EW-7438RPn by Edimax
CVE-2026-9462

8.7HIGH

Key Information:

Vendor

Edimax

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9462?

A significant vulnerability has been identified in Edimax EW-7438RPn version 1.31, specifically within the formWpsProxyEnable function located in /goform/formWpsProxyEnable. This issue arises from improper handling of the submit-url argument, leading to a stack-based buffer overflow. An attacker can exploit this vulnerability remotely, posing a serious risk to network security. Despite early notifications, the vendor has not provided any response regarding this security breach, and details of the exploit are now publicly accessible.

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-2026-9462 - Proof of Concept

References

https://vuldb.com/vuln/365443
vdb-entrytechnical-description
https://vuldb.com/vuln/365443/cti
signaturepermissions-required
https://vuldb.com/submit/813899
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

Buoy (VulDB User)
VulDB CNA Team
.