CVE-2021-45630
10.0 · CRITICALOverview
CVE-2021-45630 is a critical-severity vulnerability affecting netgear cbr40_firmware. It was published on December 26, 2021 and has a CVSS 3.1 base score of 10.0 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from netgear. Update cbr40_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| netgear | cbr40_firmware | >= 0, < 2.5.0.24 | Affected |
| netgear | cbr750_firmware | >= 0, < 4.6.3.6 | Affected |
| netgear | rbk752_firmware | >= 0, < 3.2.17.12 | Affected |
| netgear | rbr750_firmware | >= 0, < 3.2.17.12 | Affected |
| netgear | rbs750_firmware | >= 0, < 3.2.17.12 | Affected |
| netgear | rbk852_firmware | >= 0, < 3.2.17.12 | Affected |
| netgear | rbr850_firmware | >= 0, < 3.2.17.12 | Affected |
| netgear | rbs850_firmware | >= 0, < 3.2.17.12 | Affected |
Frequently Asked Questions
What is CVE-2021-45630?
CVE-2021-45630 is a critical-severity vulnerability affecting netgear cbr40_firmware. It was published on December 26, 2021 and has a CVSS 3.1 base score of 10.0 (CRITICAL).
How severe is CVE-2021-45630?
This vulnerability has a CVSS 3.1 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-45630?
Check the references section for vendor advisories and patches from netgear. Update cbr40_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-45630?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-45630 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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