CVE-2026-87681

An Access Control Bypass vulnerability exists in the Role-Based Access Control (RBAC) validation engine of Brocade Fabric OS versions before 10.0.1. When processing certain management protocol operations, the RBAC engine incorrectly categorizes non-standard action opcodes during permission checks. This allows authenticated users with read-only management privileges to bypass access controls and execute restricted administrative operations.

CVSS v3 6.3 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://support.broadcom.com/external/content/SecurityAdvisories/0/39075	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*

History

13 Oct 2026, 14:13

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.3
First Time		Broadcom fabric Operating System Broadcom
References	~~() https://support.broadcom.com/external/content/SecurityAdvisories/0/39075 -~~	() https://support.broadcom.com/external/content/SecurityAdvisories/0/39075 - Vendor Advisory
CPE		cpe:2.3:o:broadcom:fabric_operating_system::::::::

08 Oct 2026, 01:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 01:16

Updated : 2026-10-13 14:13

NVD link : CVE-2026-87681

Mitre link : CVE-2026-87681

CVE.ORG link : CVE-2026-87681

JSON object : View

Products Affected

broadcom

fabric_operating_system

CWE

CWE-269

Improper Privilege Management

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