Is CVE-2017-18743 actively exploited?

No active exploitation of CVE-2017-18743 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-18743 be exploited remotely?

Partially. CVE-2017-18743 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2017-18743?

CVE-2017-18743 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2017-18743

CWE-287Published: April 23, 2020· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

Certain NETGEAR devices are affected by authentication bypass. This affects R6300v2 before 1.0.4.8, R6400 before 1.0.1.20, R6700 before 1.0.1.20, R6900 before 1.0.1.20, R7000 before 1.0.7.10, R7100LG before V1.0.0.32, R7300DST before 1.0.0.52, R7900 before 1.0.1.16, R8000 before 1.0.3.36, R8300 before 1.0.2.94, R8500 before 1.0.2.94, WNDR3400v3 before 1.0.1.12, and WNR3500Lv2 before 1.2.0.40.

NVD Source

Technical Analysis

CVE-2017-18743 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 8.8.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.