CVE-2021-45620: NETGEAR CBR40 Firmware

Critical severity, CVSS 9.8. EPSS: 2% chance of exploitation in the next 30 days.

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, EAX20 before 1.0.0.58, EAX80 before 1.0.1.68, LAX20 before 1.1.6.28, MR60 before 1.0.6.116, MR80 before 1.1.2.20, MS60 before 1.0.6.116, MS80 before 1.1.2.20, MK62 before 1.0.6.116, MK83 before 1.1.2.20, R6400 before 1.0.1.70, R6400v2 before 1.0.4.106, R6700v3 before 1.0.4.106, R6900P before 1.3.3.140, R7000 before 1.0.11.126, R7000P before 1.3.3.140, R7850 before 1.0.5.74, R7900 before 1.0.4.46, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.74, R8000P before 1.4.2.84, RAX15 before 1.0.3.96, RAX20 before 1.0.3.96, RAX200 before 1.0.4.120, RAX35v2 before 1.0.3.96, RAX40v2 before 1.0.3.96, RAX43 before 1.0.3.96, RAX45 before 1.0.3.96, RAX50 before 1.0.3.96, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK752 before 3.2.17.12, RBK852 before 3.2.17.12, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RS400 before 1.5.1.80, XR1000 before 1.0.0.58, and XR300 before 1.0.3.68.

Affected products

NETGEAR CBR40 Firmware: before 2.5.0.24 (fixed in 2.5.0.24)
NETGEAR CBR750 Firmware: before 4.6.3.6 (fixed in 4.6.3.6)
NETGEAR EAX20 Firmware: before 1.0.0.58 (fixed in 1.0.0.58)
NETGEAR EAX80 Firmware: before 1.0.1.68 (fixed in 1.0.1.68)
NETGEAR LAX20 Firmware: before 1.1.6.28 (fixed in 1.1.6.28)
NETGEAR MK62 Firmware: before 1.0.6.116 (fixed in 1.0.6.116)
NETGEAR MK83 Firmware: before 1.1.2.20 (fixed in 1.1.2.20)
NETGEAR MR60 Firmware: before 1.0.6.116 (fixed in 1.0.6.116)
NETGEAR MR80 Firmware: before 1.1.2.20 (fixed in 1.1.2.20)
NETGEAR MS60 Firmware: before 1.0.6.116 (fixed in 1.0.6.116)
NETGEAR MS80 Firmware: before 1.1.2.20 (fixed in 1.1.2.20)
NETGEAR r6400 Firmware: before 1.0.1.70 (fixed in 1.0.1.70)
NETGEAR r6400v2 Firmware: before 1.0.4.118 (fixed in 1.0.4.118)
NETGEAR r6700v3 Firmware: before 1.0.4.118 (fixed in 1.0.4.118)
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 r7850 Firmware: before 1.0.5.74 (fixed in 1.0.5.74)
NETGEAR r7900 Firmware: before 1.0.4.46 (fixed in 1.0.4.46)
NETGEAR r7900p Firmware: before 1.4.2.84 (fixed in 1.4.2.84)
NETGEAR r7960p Firmware: before 1.4.2.84 (fixed in 1.4.2.84)
NETGEAR r8000 Firmware: before 1.0.4.74 (fixed in 1.0.4.74)
NETGEAR r8000p Firmware: before 1.4.2.84 (fixed in 1.4.2.84)
NETGEAR RAX15 Firmware: before 1.0.3.96 (fixed in 1.0.3.96)
NETGEAR RAX200 Firmware: before 1.0.4.120 (fixed in 1.0.4.120)
and 17 more

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