Is CVE-2017-18866 actively exploited?

No active exploitation of CVE-2017-18866 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-18866 be exploited remotely?

Yes. CVE-2017-18866 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2017-18866?

CVE-2017-18866 has a CVSS score of 6.1 (MEDIUM).

HOME VULNERABILITIESCVE-2017-18866

MEDIUM

CVE-2017-18866

CWE-79Published: May 5, 2020· Updated: Jun 17, 2026

6.1

CVSS v3.1

Official Description

Certain NETGEAR devices are affected by stored XSS. This affects R9000 before 1.0.2.40, R6100 before 1.0.1.1, 6R7500 before 1.0.0.110, R7500v2 before 1.0.3.20, R7800 before 1.0.2.36, WNDR4300v2 before 1.0.0.48, and WNR2000v5 before 1.0.0.58.

NVD Source

Technical Analysis

CVE-2017-18866 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

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.