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CVE-2022-46423

8.1 · HIGH

An exploitable firmware modification vulnerability was discovered on the Netgear WNR2000v1 router.

Published Dec 20, 2022CWE-494EPSS 0.41%

Overview

CVE-2022-46423 is a high-severity vulnerability. It was published on December 20, 2022 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An exploitable firmware modification vulnerability was discovered on the Netgear WNR2000v1 router. An attacker can conduct a MITM (Man-in-the-Middle) attack to modify the user-uploaded firmware image and bypass the CRC check, allowing attackers to execute arbitrary code or cause a Denial of Service (DoS). This affects v1.2.3.7 and earlier.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refhackmd.io/%40slASVrz_SrW7NQCsunofeA/BktKl8ZDoRefwww.netgear.com/about/security/Refhackmd.io/%40slASVrz_SrW7NQCsunofeA/BktKl8ZDoRefwww.netgear.com/about/security/

How CyberStrike helps

Frequently asked questions

What is CVE-2022-46423?

CVE-2022-46423 is a high-severity vulnerability. It was published on December 20, 2022 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2022-46423?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-46423?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2022-46423?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-46423 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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