CVE-2026-71989

MSI · Radix AXE6600

MSI Radix AXE6600 firmware v781521 contains a command injection vulnerability in the porTrigger function, allowing unauthenticated remote attackers to execute arbitrary commands as root.

Executive summary

A critical command injection vulnerability in the MSI Radix AXE6600 router allows unauthenticated remote attackers to achieve full system compromise.

Vulnerability

This is an OS command injection flaw (CWE-78) located within the porTrigger function. An unauthenticated attacker can leverage the alg function to inject and execute malicious commands on the underlying operating system.

Business impact

With a CVSS score of 9.8, this vulnerability represents a critical threat to network security. An attacker gaining root access can manipulate traffic, bypass security controls, or gain a foothold within the internal network. This could lead to significant data breaches and total loss of device control.

Remediation

Immediate Action: Locate all MSI Radix AXE6600 units and apply the latest firmware update from the vendor to remediate the command injection vector.

Proactive Monitoring: Review system logs for signs of anomalous command execution and monitor for unexpected traffic patterns originating from the router.

Compensating Controls: Implement strict network access control lists to limit access to the router interface and consider isolating the device on a management-only VLAN.

Exploitation status

Public Exploit Available: Unknown

Analyst recommendation

This vulnerability demands immediate attention due to its critical severity and the ease with which an unauthenticated attacker can execute arbitrary commands. Administrators must ensure all devices are updated to the latest firmware version to prevent potential remote code execution.