high
8.8
CWE
77
Advisory Published
Updated

CVE-2021-45547: Command Injection

First published: Sun Dec 26 2021(Updated: )

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R7850 before 1.0.5.74, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.74, R8000P before 1.4.2.84, RAX200 before 1.0.4.120, 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, and RBS850 before 3.2.17.12.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Netgear R7850 Firmware<1.0.5.74
NETGEAR R6400v2
Netgear R7900p Firmware<1.4.2.84
Netgear R7900p
Netgear R7960p Firmware<1.4.2.84
Netgear R7960p
Netgear R8000 Firmware<1.0.4.74
NETGEAR R8000
Netgear R8000p Firmware<1.4.2.84
Netgear R8000p
Netgear Rax200 Firmware<1.0.4.120
NETGEAR RAX200
Netgear Rax75 Firmware<1.0.4.120
Netgear Rax75
Netgear Rax80 Firmware<1.0.4.120
Netgear Rax80
Netgear Rbk852 Firmware<3.2.17.12
Netgear Rbk852
Netgear Rbr850 Firmware<3.2.17.12
NETGEAR RBR850
Netgear Rbs850 Firmware<3.2.17.12
Netgear Rbs850
Netgear Rbk752 Firmware<3.2.17.12
Netgear Rbk752
Netgear Rbr750 Firmware<3.2.17.12
Netgear Rbr750
Netgear Rbs750 Firmware<3.2.17.12
Netgear Rbs750
All of
Netgear R7850 Firmware<1.0.5.74
Netgear R7850
All of
Netgear R7900p Firmware<1.4.2.84
Netgear R7900p
All of
Netgear R7960p Firmware<1.4.2.84
Netgear R7960p
All of
Netgear R8000 Firmware<1.0.4.74
NETGEAR R8000
All of
Netgear R8000p Firmware<1.4.2.84
Netgear R8000p
All of
Netgear Rax200 Firmware<1.0.4.120
NETGEAR RAX200
All of
Netgear Rax75 Firmware<1.0.4.120
Netgear Rax75
All of
Netgear Rax80 Firmware<1.0.4.120
Netgear Rax80
All of
Netgear Rbk852 Firmware<3.2.17.12
Netgear Rbk852
All of
Netgear Rbr850 Firmware<3.2.17.12
NETGEAR RBR850
All of
Netgear Rbs850 Firmware<3.2.17.12
Netgear Rbs850
All of
Netgear Rbk752 Firmware<3.2.17.12
Netgear Rbk752
All of
Netgear Rbr750 Firmware<3.2.17.12
Netgear Rbr750
All of
Netgear Rbs750 Firmware<3.2.17.12
Netgear Rbs750

Remedy

https://kb.netgear.com/000064525/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2020-0567

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Reference Links

Frequently Asked Questions

  • What is CVE-2021-45547?

    CVE-2021-45547 is a vulnerability that allows authenticated users to inject commands into certain NETGEAR devices.

  • Which devices are affected by CVE-2021-45547?

    CVE-2021-45547 affects the following NETGEAR devices: R7850 before 1.0.5.74, R7900P before 1.4.2.84, R7960P before 1.4.2.84, R8000 before 1.0.4.74, R8000P before 1.4.2.84, RAX200 before 1.0.4.120, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, RBK752 before 3.2.17.12, RBR850 before 3.2.17.12, RBS850 before 3.2.17.12, RBK852 before 3.2.17.12, RBR750 before 3.2.17.12, and RBS750 before 3.2.17.12.

  • How severe is CVE-2021-45547?

    CVE-2021-45547 has a severity score of 8.8 (high).

  • How can I fix CVE-2021-45547?

    To fix CVE-2021-45547, update the firmware of the affected NETGEAR devices to the specified patched versions.

  • Where can I find more information about CVE-2021-45547?

    More information about CVE-2021-45547 can be found at the following URL: [https://kb.netgear.com/000064525/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2020-0567](https://kb.netgear.com/000064525/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2020-0567)

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