Vulnerability · Published Nov 14, 2025 · Assigned by VulnCheck
CVE-2021-4471TG8 Firewall Unauthenticated User Password Disclosure
High 8.7
In plain English
A high-severity security flaw in TG8 Firewall from TG8. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.5%top 55.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
TG8 Firewall exposes a directory such as /data/ over HTTP without authentication. This directory stores credential files for previously logged-in users. A remote unauthenticated attacker can enumerate and download files within the directory to obtain valid account usernames and passwords, leading to loss of confidentiality and further unauthorized access.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TG8 | TG8 Firewall | 0 |
Weakness: CWE-538 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
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-user-password-disclosure third-party-advisory