CVE-2026-87660NVD

Vulnerability Summary

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.

Severity Level

HIGH(7.0)

Published Date

Oct 8, 2026

Last Modified

Oct 8, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

Data Pending

Root Weakness (CWE)

CWE-732: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v4.0 Base Metrics — Score 7.0 (HIGH)

Attack VectorAdjacent

Attack ComplexityLow

Attack RequirementsNone

Privileges RequiredLow

User InteractionNone

Confidentiality (Vulnerable System)None

Integrity (Vulnerable System)High

Availability (Vulnerable System)High

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)None

Affected & Patched Versions

Affected Versions

Brocade Fabric OS < 9.2.2d
Brocade Fabric OS >= 10.0.0 and <= 10.0.0a1

Patched Versions

Brocade Fabric OS 9.2.2d
Brocade Fabric OS 10.0.0a1

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