Buffer Overflow Vulnerability in Edimax EW-7438RPn Router
CVE-2026-9346

8.7HIGH

Key Information:

Vendor

Edimax

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9346?

A buffer overflow vulnerability exists in the Edimax EW-7438RPn router, specifically within the function formWirelessTbl located in the /goform/formWirelessTbl file. This flaw allows an attacker to manipulate the argument submit-url, potentially leading to arbitrary code execution or a denial of service when accessed remotely. The vendor was notified of this issue but has not provided any response, raising concerns regarding the security measures available for affected users.

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-2026-9346 - Proof of Concept

References

https://vuldb.com/vuln/365309
vdb-entrytechnical-description
https://vuldb.com/vuln/365309/cti
signaturepermissions-required
https://vuldb.com/submit/813888
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
.