vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2018-6439

HIGH
7.8
CVSS Score
Published: December 3, 2018 at 10:00 PM UTC
Updated: June 17, 2026 at 02:01 AM UTC
2 products affected across 2 vendorsFabric Operating SystemFabric Operating System

Using Brocade Fabric OS by Brocade Communications Systems, Inc.?

Get instant alerts when new vulnerabilities affect Brocade Fabric OS - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A Vulnerability in the configdownload command of Brocade Fabric OS command line interface (CLI) versions before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow a local attacker to escape the restricted shell and, gain root access.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fabric Operating System· Broadcom
95%
7.4.2 ≤ v < 7.4.2d8.0.2 ≤ v < 8.0.2f8.1.2 ≤ v < 8.1.2f8.2.0 ≤ v < 8.2.1
Affected range stops below 7.4.2d, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.0.2f, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.1.2f, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.2.1, so it looks safe — our inference, not a vendor statement
Fabric Operating System· Brocade Communications
60%
v < 8.2.1
Affected range stops below 8.2.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2018-730

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card