CVE-2026-71993: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in MSI Radix AXE6600
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.
AI Analysis
Technical Summary
CVE-2026-71993 is an OS command injection vulnerability in MSI Radix AXE6600 router firmware version 781521. The issue arises from improper neutralization of special elements in the openvpn function, which attackers can exploit through the macfilter function to execute arbitrary commands remotely with root privileges on the device. This vulnerability is remotely exploitable without authentication and requires no user interaction, making it highly severe. No official fix or patch has been documented as of the publication date.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands with root privileges on the affected device, potentially leading to full system compromise. The vulnerability is remotely exploitable without authentication or user interaction, increasing the risk of widespread impact on vulnerable devices.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the affected device's management interfaces and monitor for suspicious activity related to the openvpn and macfilter functions.
CVE-2026-71993: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in MSI Radix AXE6600
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 v4.0
Score 9.3critical
Affected software
MSI
Radix AXE6600
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-71993 is an OS command injection vulnerability in MSI Radix AXE6600 router firmware version 781521. The issue arises from improper neutralization of special elements in the openvpn function, which attackers can exploit through the macfilter function to execute arbitrary commands remotely with root privileges on the device. This vulnerability is remotely exploitable without authentication and requires no user interaction, making it highly severe. No official fix or patch has been documented as of the publication date.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary OS commands with root privileges on the affected device, potentially leading to full system compromise. The vulnerability is remotely exploitable without authentication or user interaction, increasing the risk of widespread impact on vulnerable devices.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict network access to the affected device's management interfaces and monitor for suspicious activity related to the openvpn and macfilter functions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-08T23:57:54.802Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a77c951bf8831d5396d5b37
Added to database: 08/09/2026, 00:26:57 UTC
Last enriched: 08/16/2026, 14:45:34 UTC
Last updated: 09/22/2026, 02:08:00 UTC
Views: 140
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