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| Samsung SmartThings Hub 3rd Gen (GP-U999SJVLGDA)
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Security Grade
Calculator v
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Samsung SmartThings Hub 3rd Gen (GP-U999SJVLGDA)
Category: Smart Hub • Model / Gen: 3rd Gen GP-U999SJVLGDA
Release Date: 2018-10-01 • Status: End of sale
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Security Evaluation
1. Device Security
| Criterion
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Value
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Proof
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Comment
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| Known hardware tampering
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Rare
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—
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Requires physical access to the device; no exposed debugging ports.
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| Known vulnerabilities
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Very common
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🔗 Proof
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Vulnerable to firmware update hijacking in the past, which could compromise the entire smart home.
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| Prior attacks
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Rare
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🔗 Proof
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High-value target, but no widespread successful botnets recorded due to ecosystem security.
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| Updatability
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Very common
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🔗 Proof
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Firmware is managed automatically over the air by Samsung.
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| Category Score
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Score: 2 / 3
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2. System Security
| Criterion
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Value
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Proof
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Comment
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| Authentication with other systems
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Full
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🔗 Proof
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Uses OAuth and Samsung account authentication for all integrations.
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| Communications
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Encrypted with up-to-date encryption
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Uses TLS for cloud communication and encrypted protocols (Zigbee/Z-Wave) for local devices.
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| Storage
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Encrypted with up-to-date encryption
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Cloud data is encrypted; local storage only holds device configs.
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| Category Score
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Score: 1 / 3
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3. User Authentication
| Criterion
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Value
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Proof
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Comment
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| Account management
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Full
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Centralized via Samsung Account.
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| Authentication
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Secure
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🔗 Proof
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Supports Two-Factor Authentication (2FA).
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| Brute-force protection
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Exist
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Samsung account login has rate limiting and lockout mechanisms.
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| Event logging
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Access event logged
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Extensive event logging for all connected devices available in the app.
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| Passwords
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Require change after setup with complexity requirements
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Follows Samsung's strong account password policy.
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| Category Score
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Score: 1 / 3
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Technical Specifications
| Property
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Details
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| Operating System & App
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Linux (SmartThings Firmware) (Companion App: SmartThings App)
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| Hardware (CPU / GPU)
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CPU: 528MHz Dual-core • GPU:
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| Memory & Storage
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Memory: 256 MB • Storage: 512 MB
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| Power, Battery & Charging
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Battery: • Power: 5V DC Adapter • Charging:
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| Display & Camera
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Display: • Camera:
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| Sound & Connectivity
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Sound: • Connectivity: Zigbee, Z-Wave, Bluetooth, Ethernet
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| Physical (Dimensions & Mass)
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Dimensions: 5.0 x 5.0 x 1.2 inches • Mass: 7.8 ounces
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The SmartThings Hub 3rd Gen acts as the central brain for a smart home. If compromised, an attacker could control all connected devices. While it had a significant historical vulnerability involving firmware update hijacking (CVE-2020-10137), Samsung actively patches the system. It employs strict account authentication (MFA) and encrypted local/cloud communications. Due to its critical role as a hub, it requires careful security management and network isolation.
