ASUS RT-AC51U (RT-AC51U)

Security Evaluation

1. Device Security

Criterion	Value	Proof	Comment
Known hardware tampering	Very common	🔗 Proof	RT-AC51U (2015, end of sale): enclosure and debug ports assessed under default deployment
Known vulnerabilities	Very common	🔗 Proof	RT-AC51U: public CVE-2017-6548 on record, scored as frequent known vulnerabilities
Prior attacks	Very common	🔗 Proof	RT-AC51U class was widely scanned and exploited during the Mirai era
Updatability	None	🔗 Proof	RT-AC51U: vendor end-of-sale, no further firmware updates
Category Score	Score: 3 / 3

2. System Security

Criterion	Value	Proof	Comment
Authentication with other systems	No	🔗 Proof	RT-AC51U: local management accounts only, no third-party federation
Communications	No encryption	🔗 Proof	RT-AC51U: management interface is HTTP/Telnet based
Storage	No encryption	🔗 Proof	RT-AC51U: configuration and firmware not encrypted at rest
Category Score	Score: 3 / 3

3. User Authentication

Criterion	Value	Proof	Comment
Account management	Absent	🔗 Proof	RT-AC51U: single administrator account, no role separation
Authentication	Absent	🔗 Proof	RT-AC51U: password-only login, no MFA
Brute-force protection	Absent	🔗 Proof	RT-AC51U: no account lockout or rate limiting
Event logging	Absent	🔗 Proof	RT-AC51U: minimal local logs, no central audit export
Passwords	Default/Common/Easy to guess	🔗 Proof	RT-AC51U: factory default credentials, change not enforced
Category Score	Score: 3 / 3

Technical Specifications

Property	Details
Operating System & App	ASUS firmware (Companion App: ASUS Router)
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:

ASUS RT-AC51U is a router in the Router category. Evidence: CVE-2017-6548. Assessment reflects default deployment; verify the installed firmware and manual before submission.