CVE-2019-19824: Totolink a3002ru Firmware

High severity, CVSS 8.8. EPSS: 25.1% chance of exploitation in the next 30 days.

On certain TOTOLINK Realtek SDK based routers, an authenticated attacker may execute arbitrary OS commands via the sysCmd parameter to the boafrm/formSysCmd URI, even if the GUI (syscmd.htm) is not available. This allows for full control over the device's internals. This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, N100RE through 3.4.0, and N302RE 2.0.2.

Affected products

• Totolink a3002ru Firmware: up to and including 2.0.0
• Totolink a702r Firmware: up to and including 2.1.3
• Totolink n100re Firmware: up to and including 3.4.0
• Totolink n150rt Firmware: up to and including 3.4.0
• Totolink n200re Firmware: up to and including 4.0.0
• Totolink n300rt Firmware: up to and including 3.4.0
• Totolink n301rt Firmware: up to and including 2.1.6
• Totolink n302r Firmware: up to and including 3.4.0

Published 2020-01-27. Last modified 2026-06-17.