Is CVE-2017-18756 actively exploited?

No active exploitation of CVE-2017-18756 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-18756 be exploited remotely?

Partially. CVE-2017-18756 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2017-18756?

CVE-2017-18756 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2017-18756

NVD-CWE-noinfoPublished: April 22, 2020· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

Certain NETGEAR devices are affected by incorrect configuration of security settings. This affects D6220 before 1.0.0.32, D6400 before 1.0.0.66, D8500 before 1.0.3.35, DGN2200Bv4 before 1.0.0.94, DGN2200v4 before 1.0.0.94, R6250 before 1.0.4.14, R6300v2 before 1.0.4.18, R6400 before 1.01.32, R6400v2 before 1.0.2.44, R6700 before 1.0.1.36, R6900 before 1.0.1.30, R6900P before 1.3.0.8, R7000 before 1.0.9.14, R7000P before 1.3.0.8, R7100LG before 1.0.0.34, R7900 before 1.0.2.4, R8000 before 1.0.4.2, WN2500RPv2 before 1.0.1.50, WNDR3400v3 before 1.0.1.14, and WNDR4000 before 1.0.2.10.

NVD Source

Technical Analysis

CVE-2017-18756 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.