CVE-2021-20173: NETGEAR r6700 Firmware

High severity, CVSS 8.8. EPSS: 3.2% chance of exploitation in the next 30 days.

Netgear Nighthawk R6700 version 1.0.4.120 contains a command injection vulnerability in update functionality of the device. By triggering a system update check via the SOAP interface, the device is susceptible to command injection via preconfigured values.

Affected products

• NETGEAR r6700 Firmware: version 1.0.4.120 only

Published 2021-12-30. Last modified 2026-06-17.