Critical severityNVD Advisory· Published Nov 14, 2025· Updated Apr 15, 2026
CVE-2021-4470
CVE-2021-4470
Description
TG8 Firewall contains a pre-authentication remote code execution vulnerability in the runphpcmd.php endpoint. The syscmd POST parameter is passed directly to a system command without validation and executed with root privileges. A remote, unauthenticated attacker can supply crafted values to execute arbitrary operating system commands as root, resulting in full device compromise.
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Affected products
1Patches
Vulnerability mechanics
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