Is CVE-2021-45551 actively exploited?

No active exploitation of CVE-2021-45551 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-45551 be exploited remotely?

Yes. CVE-2021-45551 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-45551?

CVE-2021-45551 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2021-45551

CWE-77Published: December 26, 2021· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects D6200 before 1.1.00.40, D7000 before 1.0.1.78, R6020 before 1.0.0.42, R6080 before 1.0.0.42, R6050 before 1.0.1.26, JR6150 before 1.0.1.26, R6120 before 1.0.0.66, R6220 before 1.1.0.110, R6230 before 1.1.0.110, R6260 before 1.1.0.64, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, AC2600 before 1.2.0.62, and WNR2020 before 1.1.0.62.

NVD Source

Technical Analysis

CVE-2021-45551 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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 8.8.