What’s Vulnerable › Vulnerabilities
CVE-2021-45617
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.1% 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 CBR40 before 2.5.0.24, EAX20 before 1.0.0.48, EAX80 before 1.0.1.64, EX7500 before 1.0.0.72, R6400 before 1.0.1.68, R6900P before 1.3.2.132, R7000 before 1.0.11.116, R7000P before 1.3.2.132, R7900 before 1.0.4.38, R7960P before 1.4.1.66, R8000 before 1.0.4.66, RAX200 before 1.0.3.106, RS400 before 1.5.1.80, XR300 before 1.0.3.68, MK62 before 1.0.6.110, MR60 before 1.0.6.110, R6400v2 before 1.0.4.106, R8000P before 1.4.1.66, RAX20 before 1.0.2.64, RAX45 before 1.0.2.82, RAX80 before 1.0.3.106, MS60 before 1.0.6.110, R6700v3 before 1.0.4.106, R7900P before 1.4.1.66, RAX15 before 1.0.2.64, RAX50 before 1.0.2.82, RAX75 before 1.0.3.106, RBR750 before 3.2.16.22, RBR850 before 3.2.16.22, RBS750 before 3.2.16.22, RBS850 before 3.2.16.22, RBK752 before 3.2.16.22, and RBK852 before 3.2.16.22.
Affected products
- NETGEAR Cbr40 Firmware: before 2.5.0.24 — fixed in 2.5.0.24
- NETGEAR Eax20 Firmware: before 1.0.0.48 — fixed in 1.0.0.48
- NETGEAR Eax80 Firmware: before 1.0.1.64 — fixed in 1.0.1.64
- NETGEAR Ex7500 Firmware: before 1.0.0.72 — fixed in 1.0.0.72
- NETGEAR Mk62 Firmware: before 1.0.6.110 — fixed in 1.0.6.110
- NETGEAR Mr60 Firmware: before 1.0.6.110 — fixed in 1.0.6.110
- NETGEAR Ms60 Firmware: before 1.0.6.110 — fixed in 1.0.6.110
- NETGEAR R6400 Firmware: before 1.0.1.68 — fixed in 1.0.1.68
- NETGEAR R6400V2 Firmware: before 1.0.4.106 — fixed in 1.0.4.106
- NETGEAR R6700V3 Firmware: before 1.0.4.106 — fixed in 1.0.4.106
- NETGEAR R6900P Firmware: before 1.3.2.132 — fixed in 1.3.2.132
- NETGEAR R7000: before 1.0.11.116 — fixed in 1.0.11.116
- NETGEAR R7000P: before 1.3.2.132 — fixed in 1.3.2.132
- NETGEAR R7900 Firmware: before 1.0.4.38 — fixed in 1.0.4.38
- NETGEAR R7900P Firmware: before 1.4.1.66 — fixed in 1.4.1.66
- NETGEAR R7960P Firmware: before 1.4.1.66 — fixed in 1.4.1.66
- NETGEAR R8000 Firmware: before 1.0.4.66 — fixed in 1.0.4.66
- NETGEAR R8000P Firmware: before 1.4.1.66 — fixed in 1.4.1.66
- NETGEAR Rax15 Firmware: before 1.0.2.64 — fixed in 1.0.2.64
- NETGEAR Rax200 Firmware: before 1.0.3.106 — fixed in 1.0.3.106
- NETGEAR Rax20 Firmware: before 1.0.2.64 — fixed in 1.0.2.64
- NETGEAR Rax45 Firmware: before 1.0.2.82 — fixed in 1.0.2.82
- NETGEAR Rax50 Firmware: before 1.0.2.82 — fixed in 1.0.2.82
- NETGEAR Rax75 Firmware: before 1.0.3.106 — fixed in 1.0.3.106
- NETGEAR Rax80 Firmware: before 1.0.3.106 — fixed in 1.0.3.106
- NETGEAR Rbk752 Firmware: before 3.2.16.22 — fixed in 3.2.16.22
- NETGEAR Rbk852 Firmware: before 3.2.16.22 — fixed in 3.2.16.22
- NETGEAR Rbr750 Firmware: before 3.2.16.22 — fixed in 3.2.16.22
- NETGEAR Rbr850 Firmware: before 3.2.16.22 — fixed in 3.2.16.22
- Netgear Orbi Satellite RBS750: before 3.2.16.22 — fixed in 3.2.16.22
How to fix
Upgrade to a fixed version: NETGEAR Cbr40 Firmware 2.5.0.24; NETGEAR Eax20 Firmware 1.0.0.48; NETGEAR Eax80 Firmware 1.0.1.64; NETGEAR Ex7500 Firmware 1.0.0.72; NETGEAR Mk62 Firmware 1.0.6.110; NETGEAR Mr60 Firmware 1.0.6.110; NETGEAR Ms60 Firmware 1.0.6.110; NETGEAR R6400 Firmware 1.0.1.68; NETGEAR R6400V2 Firmware 1.0.4.106; NETGEAR R6700V3 Firmware 1.0.4.106; NETGEAR R6900P Firmware 1.3.2.132; NETGEAR R7000 1.0.11.116. Check the vendor advisory for mitigations.
References
- https://kb.netgear.com/000064505/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-Extenders-and-WiFi-Systems-PSV-2020-0156
- https://kb.netgear.com/000064505/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-Extenders-and-WiFi-Systems-PSV-2020-0156
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