D-Link DIR-825 Router

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D-Link DIR-825 Router
Security Grade
   
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Calculator v1
D-Link DIR-825 AC1200 Gigabit Router
   Brand: D-Link (Parent: D-Link Corporation)
   Category: Dual-band Wi-Fi gigabit router • Model / Gen: HW B1 / v3 DIR-825 (B1, R2, AC1200)
   Release Date: 2017-04-05 • Status: In sale
   Classification Date: 2025-10-09 • Official Website

Security Evaluation

1. Device Security

Criterion Value Proof Comment
Known hardware tampering Very common πŸ”— Proof UART pins unpopulated but labelled; case snaps open without tools
Known vulnerabilities Very common πŸ”— Proof Remote code exec via /cgi-bin/ scripts
Prior attacks Very common πŸ”— Proof Multiple botnets (Mirai variants) exploit DIR-825 R2
Updatability Rare πŸ”— Proof Last firmware 2021-09; no automatic update channel; regional images only
Category Score Score: 3 / 3

2. System Security

Criterion Value Proof Comment
Authentication with other systems Partial πŸ”— Proof HTTP basic auth; no 2FA, no certificate login
Communications Encrypted with obselete encryption πŸ”— Proof HTTPS uses TLS 1.1, weak ciphers, self-signed cert
Storage No encryption πŸ”— Proof SPI flash dumped in plaintext; config file readable
Category Score Score: 3 / 3

3. User Authentication

Criterion Value Proof Comment
Account management Basic πŸ”— Proof One admin, one guest account; no RBAC
Authentication Basic πŸ”— Proof Single admin account; no 2FA
Brute-force protection Absent πŸ”— Proof No lock-out, no captcha, unlimited login attempts
Event logging Partial logging πŸ”— Proof Web UI shows DHCP & port-forward events; no syslog export, no failed-auth log
Passwords Default/Common/Easy to guess πŸ”— Proof Factory admin/admin; no forced change, no complexity rules
Category Score Score: 3 / 3

Technical Specifications

Property Details
Operating System & App Linux-based D-Link SDK (VxWorks on early units) (Companion App: D-Link Wi-Fi (iOS/Android) or Web UI only)
Hardware (CPU / GPU) CPU: Realtek RTL8198D MIPS32 24 K @ 660 MHz • GPU: None
Memory & Storage Memory: 64 MB DDR2 • Storage: 8 MB SPI NOR flash
Power, Battery & Charging Battery: None • Power: 12 V βŽ“ 1.5 A external adapter • Charging: Barrel connector (no battery)
Display & Camera Display: 9 Γ— LED (Power, WAN, LAN, Wi-Fi, WPS, USB) • Camera: None
Sound & Connectivity Sound: None • Connectivity: Wi-Fi 5 (802.11ac) 2Γ—2 MU-MIMO, 2.4 GHz 300 Mbps + 5 GHz 867 Mbps; 5Γ— GbE (1Γ— WAN + 4Γ— LAN); USB 2.0; no Bluetooth
Physical (Dimensions & Mass) Dimensions: 177 Γ— 139 Γ— 50 mm • Mass: 250 g