CVE-2026-12807
Received Received - Intake
Command Injection in Edimax BR-6478AC V2 Router

Publication date: 2026-06-21

Last updated on: 2026-06-21

Assigner: VulDB

Description
A vulnerability was found in Edimax BR-6478AC V2 1.23. This affects the function setWAN of the file /goform/setWAN of the component POST Request Handler. The manipulation of the argument pppUserName/pptpUserName/L2TPUserName results in command injection. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-06-21
Last Modified
2026-06-21
Generated
2026-06-22
AI Q&A
2026-06-22
EPSS Evaluated
N/A
NVD
CVE-2026-12807
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
edimax br-6478ac v1.23
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-74 The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability exists in the Edimax BR-6478AC V2 1.23 router, specifically in the setWAN function of the /goform/setWAN POST Request Handler component.

The issue arises from the manipulation of the arguments pppUserName, pptpUserName, or L2TPUserName, which leads to command injection.

An attacker can exploit this vulnerability remotely to execute arbitrary commands on the affected device.

The exploit has been made public, and the vendor was contacted but did not respond.

Impact Analysis

This vulnerability allows remote attackers to perform command injection on the affected router.

Successful exploitation could lead to unauthorized control over the device, potentially allowing attackers to execute arbitrary commands.

This could compromise the security and integrity of your network, leading to data breaches, network disruption, or further attacks.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-12807. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart