TG8 Firewall Unauthenticated User Password Disclosure
CVE-2021-4471
8.7HIGH
Key Information:
- Vendor
Tg8
- Status
- Vendor
- CVE Published:
- 14 November 2025
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2021-4471?
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 Version(s)
TG8 Firewall 0
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
CVSS V4
Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved
Credit
SSD Secure Disclosure