Is CVE-2022-46423 actively exploited?

No active exploitation of CVE-2022-46423 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-46423 be exploited remotely?

Yes. CVE-2022-46423 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-46423?

CVE-2022-46423 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2022-46423

NVD-CWE-noinfoPublished: December 20, 2022· Updated: Jun 17, 2026

8.1

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2022-46423 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.