Is CVE-2017-6227 actively exploited?

No active exploitation of CVE-2017-6227 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2017-6227 be exploited remotely?

Partially. CVE-2017-6227 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2017-6227?

CVE-2017-6227 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2017-6227

NVD-CWE-noinfoPublished: February 8, 2018· Updated: Jun 17, 2026

6.5

CVSS v3.1

Official Description

A vulnerability in the IPv6 stack on Brocade Fibre Channel SAN products running Brocade Fabric OS (FOS) versions before 7.4.2b, 8.1.2 and 8.2.0 could allow an attacker to cause a denial of service (CPU consumption and device hang) condition by sending crafted Router Advertisement (RA) messages to a targeted system.

NVD Source

Technical Analysis

CVE-2017-6227 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 availability disruption (denial of service), with a CVSS base score of 6.5.