CVE-2026-71993
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 openvpn function that allows remote attackers to execute arbitrary commands on the affected device. Attackers can exploit the macfilter function to inject malicious commands and obtain root privileges on the underlying system.

CVSS Scores

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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-2026-71993
EUVD
EUVD-2026-54836

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
msi radix_axe6600 v781521
msi radix_axe6600 to v782418 (inc)

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

CVE-2026-71993 is a command injection vulnerability in MSI Radix AXE6600 router firmware version v781521 or earlier. It exists in the openvpn function and allows remote attackers to execute arbitrary commands by exploiting the macfilter function. Successful exploitation grants root access to the system.

Detection Guidance

To detect this vulnerability, check the firmware version of your MSI Radix AXE6600 router. If it is v781521 or earlier, the device is vulnerable. Log in to the router's admin panel and navigate to the firmware information section to verify the version.

Impact Analysis

Attackers can remotely execute malicious commands on your router, potentially taking full control of the device. This could lead to network compromise, data theft, or unauthorized access to connected systems. The high CVSS score (9.3) indicates severe risk.

Compliance Impact

This vulnerability allows remote attackers to execute arbitrary commands with root privileges on the affected MSI Radix AXE6600 router. Such unauthorized access could lead to data breaches, unauthorized data access, or manipulation, which may violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data security).

Mitigation Strategies

Immediately update the router's firmware to version v782418 or later, which patches the vulnerability. If an update is not available, consider isolating the device from the network or disabling the openvpn and macfilter functions until a patch is applied.

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