CVE-2021-4470
TG8 Firewall Unauthenticated RCE via runphpcmd.php
- State
- Published
- Severity
- 9.3 Critical
- Published
- Nov 14, 2025
- Updated
- Nov 18, 2025
- Reserved
- Nov 14, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | VulnCheck |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
| Product | Versions |
|---|---|
TG8 FirewallTG8 |
|
References
- https://ssd-disclosure.com/ssd-advisory-tg8-firewall-preauth-rce-and-password-disclosure/technical-descriptionexploit
- https://web.archive.org/web/20211024224240/http://www.tg8security.com/product
- https://www.vulncheck.com/advisories/tg8-firewall-unauthenticated-rce-via-runphpcmd-phpthird-party-advisory
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