Command Injection Vulnerability in Edimax BR-6478AC V2 Router
CVE-2026-12809

5.3MEDIUM

Key Information:

Vendor

Edimax

Status
Br-6478ac V2
Vendor
CVE Published:
21 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12809?

A command injection vulnerability exists in the Edimax BR-6478AC V2 router, specifically in the 'wiz_5in1_redirect' function within the /goform/wiz_5in1_redirect component. This flaw allows an attacker to manipulate the 'newpass' argument, potentially executing arbitrary commands on the device. Given that the attack can be launched remotely, the implications for security are significant. The exploit for this vulnerability is publicly available, highlighting the urgent need for users to be aware and take precautions. Attempts to communicate the vulnerability to the vendor have gone unanswered, underscoring the importance of proactive security measures.

Affected Version(s)

BR-6478AC V2 1.23

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-2026-12809 - Proof of Concept

References

https://vuldb.com/vuln/372603
vdb-entrytechnical-description
https://vuldb.com/vuln/372603/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12809
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

wxhwxhwxh_mie (VulDB User)
VulDB CNA Team
.