CVE-2021-45516: NETGEAR r6400 Firmware

Medium severity, CVSS 4.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by denial of service. This affects R6400 before 1.0.1.70, R7000 before 1.0.11.126, R6900P before 1.3.3.140, R7000P before 1.3.3.140, R8000 before 1.0.4.74, RBK852 before 3.2.10.11, RBR850 before 3.2.10.11, and RBS850 before 3.2.10.11.

Affected products

NETGEAR r6400 Firmware: before 1.0.1.70 (fixed in 1.0.1.70)
NETGEAR r6900p Firmware: before 1.3.3.140 (fixed in 1.3.3.140)
NETGEAR r7000 Firmware: before 1.0.11.126 (fixed in 1.0.11.126)
NETGEAR r7000p Firmware: before 1.3.3.140 (fixed in 1.3.3.140)
NETGEAR r8000 Firmware: before 1.0.4.74 (fixed in 1.0.4.74)
NETGEAR RBK852 Firmware: before 3.2.10.11 (fixed in 3.2.10.11)
NETGEAR RBR850 Firmware: before 3.2.10.11 (fixed in 3.2.10.11)
NETGEAR RBS850 Firmware: before 3.2.10.11 (fixed in 3.2.10.11)

Published 2021-12-26. Last modified 2026-06-17.