What’s Vulnerable › Vulnerabilities
CVE-2021-45616
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.0% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-12-26 · updated 2026-06-17
- Weakness: CWE-77
Description
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR750 before 3.2.18.2, LAX20 before 1.1.6.28, MK62 before 1.0.6.116, MR60 before 1.0.6.116, MS60 before 1.0.6.116, R6900P before 1.3.3.140, R7000 before 1.0.11.126, R7000P before 1.3.3.140, R7850 before 1.0.5.68, R7900 before 1.0.4.46, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.68, 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, and XR1000 before 1.0.0.58.
Affected products
- NETGEAR Cbr750 Firmware: before 3.2.18.2 — fixed in 3.2.18.2
- 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 Mr60 Firmware: before 1.0.6.116 — fixed in 1.0.6.116
- NETGEAR Ms60 Firmware: before 1.0.6.116 — fixed in 1.0.6.116
- NETGEAR R6900P Firmware: before 1.3.3.140 — fixed in 1.3.3.140
- NETGEAR R7000: before 1.0.11.126 — fixed in 1.0.11.126
- NETGEAR R7000P: before 1.3.3.140 — fixed in 1.3.3.140
- NETGEAR R7850 Firmware: before 1.0.5.68 — fixed in 1.0.5.68
- 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 1.0.4.68 — fixed in 1.0.4.68
- 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
- NETGEAR Rax20 Firmware: before 1.0.3.96 — fixed in 1.0.3.96
- NETGEAR Rax35V2 Firmware: before 1.0.3.96 — fixed in 1.0.3.96
- NETGEAR Rax40V2 Firmware: before 1.0.3.96 — fixed in 1.0.3.96
- Netgear RAX43: before 1.0.3.96 — fixed in 1.0.3.96
- NETGEAR Rax45 Firmware: before 1.0.3.96 — fixed in 1.0.3.96
- NETGEAR Rax50 Firmware: before 1.0.3.96 — fixed in 1.0.3.96
- NETGEAR Rax75 Firmware: before 1.0.4.120 — fixed in 1.0.4.120
- NETGEAR Rax80 Firmware: before 1.0.4.120 — fixed in 1.0.4.120
- 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 Orbi Satellite RBS750: 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
How to fix
Upgrade to a fixed version: NETGEAR Cbr750 Firmware 3.2.18.2; NETGEAR Lax20 Firmware 1.1.6.28; NETGEAR Mk62 Firmware 1.0.6.116; NETGEAR Mr60 Firmware 1.0.6.116; NETGEAR Ms60 Firmware 1.0.6.116; NETGEAR R6900P Firmware 1.3.3.140; NETGEAR R7000 1.0.11.126; NETGEAR R7000P 1.3.3.140; NETGEAR R7850 Firmware 1.0.5.68; NETGEAR R7900 Firmware 1.0.4.46; NETGEAR R7900P Firmware 1.4.2.84; NETGEAR R7960P Firmware 1.4.2.84. Check the vendor advisory for mitigations.
References
- https://kb.netgear.com/000064527/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2020-0576
- https://kb.netgear.com/000064527/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2020-0576
Get alerted when CVE-2021-45616 or the next vulnerability affects your stack