CVE-2021-45633: NETGEAR CBR750 Firmware

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR750 before 4.6.3.6, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, and RBK852 before 3.2.17.12.

Affected products

• NETGEAR CBR750 Firmware: before 4.6.3.6 (fixed in 4.6.3.6)
• NETGEAR RBK752 Firmware: before 3.2.17.12 (fixed in 3.2.17.12)
• NETGEAR RBK852 Firmware: before 3.2.17.12 (fixed in 3.2.17.12)
• NETGEAR RBR750 Firmware: before 3.2.17.12 (fixed in 3.2.17.12)
• NETGEAR RBR850 Firmware: before 3.2.17.12 (fixed in 3.2.17.12)
• NETGEAR RBS750 Firmware: before 3.2.17.12 (fixed in 3.2.17.12)
• NETGEAR RBS850 Firmware: before 3.2.17.12 (fixed in 3.2.17.12)

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