MSI Radix AXE6600 router firmware version v781521 — CVE-2026-71986 (Critical)

Date Aug 9, 2026

Type Vendor advisory

Signal Critical vendor advisory

Vendor / Product MSI · Radix AXE6600 router firmware version v781521

CVE CVE-2026-71986

Critical vendor advisory CVE-2026-71986

Summary

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

Why it matters

This CVE carries a CRITICAL severity rating (CVSS 9.8) in MSI Radix AXE6600 router firmware version v781521. Patch or mitigate promptly.

Operator check

Review CVE-2026-71986 in your asset inventory. Apply patches per vendor guidance and verify Radix AXE6600 router firmware version v781521 is not exposed. CVSS score: 9.8.

Sources

NVD — CVE-2026-71986 Source reference Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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