Critical 9.3Published Nov 14, 2025

CVE-2021-4470TG8 Firewall Unauthenticated RCE via runphpcmd.php

Updated under an hour ago (Oct 27, 2026, 10:40 AM ET)

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It affects TG8 Firewall. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for TG8 Firewall

Exploited in the last 30 days

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.

CVSS: 9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Nov 18, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

TG8 TG8 Firewall tg8:firewall (from the name)	0	CNA record

References

References

https://ssd-disclosure.com/ssd-advisory-tg8-firewall-preauth-rce-and-password-disclosure/	technical-description, exploit
https://web.archive.org/web/20211024224240/http://www.tg8security.com/	product
https://www.vulncheck.com/advisories/tg8-firewall-unauthenticated-rce-via-runphpcmd-php	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.