Is CVE-2021-45501 actively exploited?

No active exploitation of CVE-2021-45501 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-45501 be exploited remotely?

Yes. CVE-2021-45501 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-45501?

CVE-2021-45501 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-45501

NVD-CWE-noinfoPublished: December 26, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Certain NETGEAR devices are affected by authentication bypass. This affects AC2400 before 1.1.0.84, AC2600 before 1.1.0.84, D7000 before 1.0.1.82, R6020 before 1.0.0.52, R6080 before 1.0.0.52, R6120 before 1.0.0.80, R6220 before 1.1.0.110, R6230 before 1.1.0.110, R6260 before 1.1.0.84, R6330 before 1.1.0.84, R6350 before 1.1.0.84, R6700v2 before 1.1.0.84, R6800 before 1.1.0.84, R6850 before 1.1.0.84, R6900v2 before 1.1.0.84, R7200 before 1.1.0.84, R7350 before 1.1.0.84, R7400 before 1.1.0.84, and R7450 before 1.1.0.84.

NVD Source

Technical Analysis

CVE-2021-45501 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 9.8.