Zyxel NBG6617 (NBG6617)

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	Very common	🔗 Proof	NBG6617 (2016): enclosure and debug ports assessed under default deployment
Known vulnerabilities	Rare	🔗 Proof	NBG6617: no model-specific CVE found, scored as rare
Prior attacks	Very common	🔗 Proof	NBG6617 class was widely scanned and exploited during the Mirai era
Updatability	None	🔗 Proof	NBG6617 (2016): firmware support assessed from vendor advisories
Category Score	Score: 3 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	No	🔗 Proof	NBG6617: local management accounts only, no third-party federation
Communications	No encryption	🔗 Proof	NBG6617: management interface is HTTP/Telnet based
Storage	No encryption	🔗 Proof	NBG6617: configuration and firmware not encrypted at rest
Category Score	Score: 3 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Absent	🔗 Proof	NBG6617: single administrator account, no role separation
Authentication	Absent	🔗 Proof	NBG6617: password-only login, no MFA
Brute-force protection	Absent	🔗 Proof	NBG6617: no account lockout or rate limiting
Event logging	Absent	🔗 Proof	NBG6617: minimal local logs, no central audit export
Passwords	Default/Common/Easy to guess	🔗 Proof	NBG6617: factory default credentials, change not enforced
Category Score	Score: 3 / 3

Technical Specifications

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

Zyxel NBG6617 is a router in the Router category. Evidence: NVD search / vendor manual. Assessment reflects default deployment; verify the installed firmware and manual before submission.