CVE-2026-87660
Received Received - Intake

Improper File Permissions in Brocade Fabric OS

Publication date: 2026-10-08

Last updated on: 2026-10-08

Assigner: Brocade Communications Systems, LLC

Description
An improper file permission and missing authorization vulnerability exists in the diagnostic kernel module subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. An unprivileged local user can invoke privileged hardware tests, force system error conditions, reset hardware blades, or disrupt storage fabric operations.

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Meta Information

Published
2026-10-08
Last Modified
2026-10-08
Generated
2026-10-08
AI Q&A
2026-10-08
EPSS Evaluated
N/A
NVD
CVE-2026-87660
EUVD
EUVD-2026-94697

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
Brocade Fabric OS 0
Brocade Fabric OS 10.0.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-732 The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

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Executive Summary

This vulnerability is an improper file permission and missing authorization issue in Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. It allows an unprivileged local user to run privileged hardware tests, trigger system errors, reset hardware blades, or disrupt storage fabric operations.

Impact Analysis

An attacker with local access could cause system instability, hardware resets, or fabric disruptions, potentially leading to data loss or service outages in storage environments using affected Brocade Fabric OS versions.

Compliance Impact

This vulnerability could lead to unauthorized access or disruptions in storage systems, potentially violating data integrity and availability requirements in GDPR and HIPAA. Compliance may be impacted if systems are not patched, as unauthorized changes could result in data breaches or service disruptions.

Mitigation Strategies

Upgrade Brocade Fabric OS to version 9.2.2d or later, or 10.0.0a2 or later. Remove unnecessary permissions for local users to invoke privileged hardware tests. Restrict access to diagnostic kernel module functions.

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