Is CVE-2021-45513 actively exploited?

No active exploitation of CVE-2021-45513 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-45513 be exploited remotely?

Partially. CVE-2021-45513 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2021-45513?

CVE-2021-45513 has a CVSS score of 9.6 (CRITICAL).

HOME VULNERABILITIESCVE-2021-45513

CRITICAL

CVE-2021-45513

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

9.6

CVSS v3.1

Official Description

NETGEAR XR1000 devices before 1.0.0.58 are affected by command injection by an unauthenticated attacker.

NVD Source

Technical Analysis

CVE-2021-45513 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

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 9.6.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.