Buffer Overflow Vulnerability in Edimax EW-7438RPn Router
CVE-2026-9360

8.7HIGH

Key Information:

Vendor

Edimax

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9360?

A security vulnerability has been identified in the Edimax EW-7438RPn router running firmware version 1.28a. This issue lies within the POST Request Handler, specifically in the formwlencrypt24g function located in the /goform/formwlencrypt24g file. The vulnerability arises from improper handling of the key1 argument, which can lead to a buffer overflow. This creates an opportunity for attackers to execute arbitrary code remotely. The exploit for this vulnerability has been made public, potentially exposing affected devices to various attacks. Despite early notifications, the vendor has not issued a response or a fix.

Affected Version(s)

EW-7438RPn 1.28a

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-2026-9360 - Proof of Concept

References

https://vuldb.com/vuln/365323
vdb-entrytechnical-description
https://vuldb.com/vuln/365323/cti
signaturepermissions-required
https://vuldb.com/submit/811544
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

yhryhryhr_miemie (VulDB User)
VulDB CNA Team
.