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CVE-2026-71990 is a critical command injection vulnerability in MSI Radix AXE6600 router firmware version v781521. The flaw is present in the TelnetSSH function used for SSH configuration. Insufficient neutralization of attacker-controlled input in this function allows a remote attacker to inject and execute arbitrary operating system commands via the SSH configuration interface. Successful exploitation can result in execution of commands with root privileges on the underlying device, giving the attacker full control over the affected router.
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No public exploit code observed for this vulnerability.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical unauthenticated remote OS command injection vulnerability in the SSH configuration function of MSI Radix AXE6600 routers, enabling root-level command execution.
A critical command injection vulnerability in the TelnetSSH function of MSI Radix AXE6600 router firmware v781521 that can allow remote attackers to execute arbitrary commands and obtain root privileges.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.