Command Injection Vulnerability in Edimax BR-6675nD Router
CVE-2026-9400

5.3MEDIUM

Key Information:

Vendor

Edimax

Status
Br-6675nd
Vendor
CVE Published:
24 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-9400?

A vulnerability exists in the Edimax BR-6675nD router version 1.12, specifically within the formUSBStorage function of the POST Request Handler component. An attacker can exploit this flaw by manipulating the sub_dir argument, leading to command injection that can be executed remotely. The issue has been publicly disclosed, and the vendor has not responded to initial notifications regarding this security concern, putting users at potential risk. It is crucial for affected users to take immediate action to secure their devices against possible exploits.

Affected Version(s)

BR-6675nD 1.12

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-2026-9400 - Proof of Concept

References

https://vuldb.com/vuln/365381
vdb-entrytechnical-description
https://vuldb.com/vuln/365381/cti
signaturepermissions-required
https://vuldb.com/submit/811562
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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_tu (VulDB User)
VulDB CNA Team
.