Vulnerability · Published Aug 8, 2026 · Assigned by VulnCheck

CVE-2026-71991MSI Radix AXE6600 v781521 Command Injection via TelnetSSH Function

Critical 9.8

In plain English

A critical-severity OS command injection in Radix AXE6600 from MSI. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.5% (higher than 85% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)2.5%top 15.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
MSI	Radix AXE6600	0 – through v781521

Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

MSI Vendor Site product
Fix Version Download patch
https://www.vulncheck.com/advisories/msi-radix-axe6600-v781521-command-injection-via-telnetssh-function-used-for-telnet-configuration third-party-advisory