---
id: CVE-2026-71991
title: >-
  MSI Radix AXE6600 router firmware version v781521 contains a command injection
  vulnerability in the TelnetSSH function used for Telnet configuration that
  allows remote attackers to execute arbitrary commands on the affected device
summary: >-
  MSI Radix AXE6600 router firmware version v781521 contains a command injection
  vulnerability in the TelnetSSH function used for Telnet configuration that
  allows remote attackers to execute arbitrary commands on the affected device.
  Attac…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
published: '2026-08-09'
updated: '2026-08-09'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-71991'
references:
  - url: >-
      https://us.msi.com/Networking/RadiX-AXE6600-WiFi-6E-Tri-Band-Gaming-Router/support
    label: disclosure@vulncheck.com
  - url: 'https://www.msi.com/'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/msi-radix-axe6600-v781521-command-injection-via-telnetssh-function-used-for-telnet-configuration
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-08-09T07:33:01.584Z'
epss: 0.02464
epssPercentile: 0.83798
vendor: MSI
product: Radix AXE6600
affected:
  - radix_axe6600 <= v781521
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-08-17T17:07:43.008811Z'
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.