CVE-2018-6434

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-11-08 · updated 2026-06-17
Weakness: CWE-384

Description

A vulnerability in the web management interface of Brocade Fabric OS versions before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow attackers to intercept or manipulate a user's session ID.

Affected products

Brocade Fabric OS: from 7.4.2 before 7.4.2d; from 8.0.2 before 8.0.2f; from 8.1.2 before 8.1.2f; from 8.2.0 before 8.2.1 — fixed in 7.4.2d, 8.0.2f, 8.1.2f, 8.2.1

How to fix

Upgrade to a fixed version: Brocade Fabric OS 7.4.2d, 8.0.2f, 8.1.2f, 8.2.1. Check the vendor advisory for mitigations.

References

https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2018-736
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2018-736

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