Stack-based Buffer Overflow in Edimax EW-7438RPn Affects Remote Security
CVE-2026-9461

8.7HIGH

Key Information:

Vendor

Edimax

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9461?

A security vulnerability in Edimax EW-7438RPn version 1.31 has been identified, affecting the formRadius function located in the /goform/formRadius file. This flaw allows an attacker to manipulate the submit-url argument, resulting in a stack-based buffer overflow. The attack can be executed remotely, posing significant risks to users. Despite early notification, the vendor has not responded to the disclosure. Publicly available exploit details could facilitate attacks on affected systems.

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-2026-9461 - Proof of Concept

References

https://vuldb.com/vuln/365442
vdb-entrytechnical-description
https://vuldb.com/vuln/365442/cti
signaturepermissions-required
https://vuldb.com/submit/813898
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
.