critical
9.6
CWE
77
Advisory Published
Updated

CVE-2021-45631: Command Injection

First published: Sun Dec 26 2021(Updated: )

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, RBK752 before 3.2.17.12, RBR750 before 3.2.17.12, RBS750 before 3.2.17.12, RBK852 before 3.2.17.12, RBR850 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 Cbr40 Firmware<2.5.0.24
Netgear Cbr40
Netgear Cbr750 Firmware<4.6.3.6
Netgear Cbr750
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
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
All of
Netgear Cbr40 Firmware<2.5.0.24
Netgear Cbr40
All of
Netgear Cbr750 Firmware<4.6.3.6
Netgear Cbr750
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
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

Remedy

https://kb.netgear.com/000064136/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0504

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-45631?

    The severity of CVE-2021-45631 is critical with a value of 8.8.

  • Which NETGEAR devices are affected by CVE-2021-45631?

    Netgear devices CBR40, CBR750, RBK752, RBR750, RBS750, RBK852, RBR850, and RBS850 are affected by CVE-2021-45631.

  • How can an unauthenticated attacker exploit CVE-2021-45631?

    An unauthenticated attacker can exploit CVE-2021-45631 through command injection.

  • What is the recommended action to fix CVE-2021-45631?

    To fix CVE-2021-45631, users should update their NETGEAR devices to the specified firmware versions.

  • Where can I find more information about CVE-2021-45631?

    More information about CVE-2021-45631 can be found in the Netgear Security Advisory located at the provided reference link.

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