CVE-2021-45595: NETGEAR LBR20 Firmware

High severity, CVSS 8.8. EPSS: 1.6% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects LBR20 before 2.6.3.50, RBS50Y before 2.7.3.22, RBR10 before 2.7.3.22, RBR20 before 2.7.3.22, RBR40 before 2.7.3.22, RBR50 before 2.7.3.22, RBS10 before 2.7.3.22, RBS20 before 2.7.3.22, RBS40 before 2.7.3.22, RBS50 before 2.7.3.22, RBK12 before 2.7.3.22, RBK20 before 2.7.3.22, RBK40 before 2.7.3.22, and RBK50 before 2.7.3.22.

Affected products

NETGEAR LBR20 Firmware: before 2.6.3.50 (fixed in 2.6.3.50)
NETGEAR RBK12 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBK20 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBK40 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBK50 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBR10 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBR20 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBR40 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBR50 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBS10 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBS20 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBS40 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBS50 Firmware: before 2.7.3.22 (fixed in 2.7.3.22)
NETGEAR RBS50Y Firmware: before 2.7.3.22 (fixed in 2.7.3.22)

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