Zyxel USG FLEX 100

Zyxel USG FLEX 100
Security Grade C Calculator v1	Zyxel USG FLEX 100 Brand: Zyxel (Parent: Zyxel) Category: Firewall • Model / Gen: USG FLEX 100 Release Date: 2020-01-01 • Status: In sale Classification Date: 2026-10-26 • Official Website

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	🔗 Proof	USG FLEX 100 (2020): enclosure and debug ports assessed under default deployment
Known vulnerabilities	Very common	🔗 Proof	USG FLEX 100: public CVE-2022-30525 on record, scored as frequent known vulnerabilities
Prior attacks	Rare	🔗 Proof	USG FLEX 100: no public record of large-scale exploitation
Updatability	Very common	🔗 Proof	USG FLEX 100 (2020): firmware support assessed from vendor advisories
Category Score	Score: 2 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	🔗 Proof	USG FLEX 100: primarily local accounts, directory integration not enabled by default
Communications	Encrypted with obselete encryption	🔗 Proof	USG FLEX 100: HTTPS management with dated protocol versions and cipher suites
Storage	No encryption	🔗 Proof	USG FLEX 100: volume and configuration encryption available but off by default
Category Score	Score: 3 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Basic	🔗 Proof	USG FLEX 100: multiple accounts with roles, single admin by default
Authentication	Basic	🔗 Proof	USG FLEX 100: local password plus optional two-factor
Brute-force protection	Basic	🔗 Proof	USG FLEX 100: failed-login lockout present, limited strength
Event logging	Partial logging	🔗 Proof	USG FLEX 100: login and access events logged, exportable
Passwords	Require change after setup	🔗 Proof	USG FLEX 100: password change required at setup, no complexity rules
Category Score	Score: 2 / 3

Technical Specifications

Property	Details
Operating System & App	Zyxel firmware (Companion App: Zyxel app)
Hardware (CPU / GPU)	CPU: • GPU:
Memory & Storage	Memory: • Storage:
Power, Battery & Charging	Battery: • Power: • Charging:
Display & Camera	Display: • Camera:
Sound & Connectivity	Sound: • Connectivity: Ethernet, Wi-Fi 2.4/5 GHz
Physical (Dimensions & Mass)	Dimensions: • Mass:

Zyxel USG FLEX 100 is a firewall in the Firewall category. Evidence: CVE-2022-30525 / vendor documentation. Assessment reflects default deployment; verify the installed firmware before submission.