Is CVE-2021-45675 actively exploited?

No active exploitation of CVE-2021-45675 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-45675 be exploited remotely?

Yes. CVE-2021-45675 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-45675?

CVE-2021-45675 has a CVSS score of 4.8 (MEDIUM).

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MEDIUM

CVE-2021-45675

CWE-79Published: December 26, 2021· Updated: Jun 17, 2026

4.8

CVSS v3.1

Official Description

Certain NETGEAR devices are affected by stored XSS. This affects R6120 before 1.0.0.76, R6260 before 1.1.0.78, R6850 before 1.1.0.78, R6350 before 1.1.0.78, R6330 before 1.1.0.78, R6800 before 1.2.0.76, R6700v2 before 1.2.0.76, R6900v2 before 1.2.0.76, R7200 before 1.2.0.76, R7350 before 1.2.0.76, R7400 before 1.2.0.76, R7450 before 1.2.0.76, AC2100 before 1.2.0.76, AC2400 before 1.2.0.76, and AC2600 before 1.2.0.76.

NVD Source

Technical Analysis

CVE-2021-45675 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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

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.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.