High 8.7Published Nov 14, 2025

CVE-2021-4471TG8 Firewall Unauthenticated User Password Disclosure

Updated under an hour ago (Oct 26, 2026, 6:20 PM ET)

Does this affect you?

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

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for TG8 Firewall

Exploited in the last 30 days

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.

CVSS: 8.7 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-538
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 17, 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-user-password-disclosure	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.