CVE-2026-71989 MSI Radix AXE6600 v781521 Command Injection via porTrigger function

Critical 9.3 Published Updated

Remote attackers can execute arbitrary commands and gain root privileges on MSI Radix AXE6600 routers via the porTrigger function.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-71989?

CVE-2026-71989 is a critical command injection vulnerability in MSI Radix AXE6600, published on 8 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

MSI Radix AXE6600 router firmware version v781521 contains a command injection vulnerability in the porTrigger function that allows remote attackers to execute arbitrary commands on the affected device. Attackers can exploit this vulnerability through the alg function to execute malicious commands and obtain root privileges on the underlying system.

Weakness: CWE-78

Which versions are affected by CVE-2026-71989?

How do I fix CVE-2026-71989?

No fix has been published for CVE-2026-71989 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-71989 being exploited?

There is no known exploitation of CVE-2026-71989 in the wild and no public exploit code.

Sources

Also known as GHSA-x5vj-fm3x-hr65.

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