Is CVE-2021-45512 actively exploited?

No active exploitation of CVE-2021-45512 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-45512 be exploited remotely?

Yes. CVE-2021-45512 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-45512?

CVE-2021-45512 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2021-45512

CWE-327Published: December 26, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Certain NETGEAR devices are affected by weak cryptography. This affects D7000v2 before 1.0.0.62, D8500 before 1.0.3.50, EX3700 before 1.0.0.84, EX3800 before 1.0.0.84, EX6120 before 1.0.0.54, EX6130 before 1.0.0.36, EX7000 before 1.0.1.90, R6250 before 1.0.4.42, R6400v2 before 1.0.4.98, R6700v3 before 1.0.4.98, R6900P before 1.3.2.124, R7000 before 1.0.11.106, R7000P before 1.3.2.124, R7100LG before 1.0.0.56, R7900 before 1.0.4.26, R8000 before 1.0.4.58, R8300 before 1.0.2.134, R8500 before 1.0.2.134, RS400 before 1.5.0.48, WNR3500Lv2 before 1.2.0.62, and XR300 before 1.0.3.50.

NVD Source

Technical Analysis

CVE-2021-45512 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.