CVE-2018-6440: Broadcom Fabric Operating System

Critical severity, CVSS 9.1. EPSS: 2.2% chance of exploitation in the next 30 days.

A vulnerability in the proxy service of Brocade Fabric OS versions before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow remote unauthenticated attackers to obtain sensitive information and possibly cause a denial of service attack.

Affected products

• Broadcom Fabric Operating System: from 7.4.2, before 7.4.2d (fixed in 7.4.2d); from 8.0.2, before 8.0.2f (fixed in 8.0.2f); from 8.1.2, before 8.1.2f (fixed in 8.1.2f); from 8.2.0, before 8.2.1 (fixed in 8.2.1)

Published 2018-12-03. Last modified 2026-06-17.