CVE-2026-71990
Received Received - Intake

Command Injection in MSI Radix AXE6600 Router Firmware

Publication date: 2026-08-09

Last updated on: 2026-08-09

Assigner: VulnCheck

Description
MSI Radix AXE6600 router firmware version v781521 contains a command injection vulnerability in the TelnetSSH function used for SSH configuration that allows remote attackers to execute arbitrary commands on the affected device. Attackers can exploit this vulnerability through the SSH configuration interface to inject malicious commands and obtain root privileges on the underlying system.

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Meta Information

Published
2026-08-09
Last Modified
2026-08-09
Generated
2026-08-09
AI Q&A
2026-08-09
EPSS Evaluated
N/A
NVD
CVE-2026-71990
EUVD
EUVD-2026-54833

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
msi radix_axe6600 to 781521 (inc)
msi radix_axe6600 782418

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

This vulnerability is a command injection flaw in the MSI Radix AXE6600 router firmware version v781521. It exists in the TelnetSSH function used for SSH configuration. Attackers can remotely inject malicious commands through the SSH configuration interface to execute arbitrary code on the device and gain root privileges.

Detection Guidance

To detect this vulnerability, check if your MSI Radix AXE6600 router is running firmware version v781521 or earlier. Use the router's admin interface or SSH to verify the firmware version. If you have access to the command line, you can check the firmware version via telnet or SSH with commands like 'show version' or 'cat /etc/version' depending on the device.

Impact Analysis

This vulnerability allows remote attackers to take full control of your MSI Radix AXE6600 router. They can execute any command on the device, steal sensitive data, monitor network traffic, or use the router as a pivot to attack other systems on your network.

Compliance Impact

This vulnerability could lead to unauthorized access and control of network devices, potentially exposing sensitive data. For GDPR, it may result in data breaches requiring notification under Article 33. For HIPAA, it could compromise protected health information if the device is used in healthcare environments.

Mitigation Strategies

Immediately update the router firmware to version v782418 or later, which fixes this vulnerability. Disable Telnet and SSH if not needed. If SSH is required, restrict access to trusted IP addresses and monitor for unusual activity. Ensure the router is not exposed to the internet unnecessarily.

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