CVE-2026-87663

An authentication bypass and command injection vulnerability exists in the inter-switch remote execution service of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. When processing remote command execution IPC frames across the fabric, the receiving switch processes these commands at an elevated processing level without proper verification of transmitted parameters. This allows an attacker on a single fabric-connected switch to escalate privileges and execute arbitrary root commands locally or across other managed fabric members where remote execution functionality is enabled.

CVSS v3 6.7 MEDIUM

6.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.broadcom.com/external/content/SecurityAdvisories/0/39163	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:broadcom:fabric_operating_system::::::::
	cpe:2.3:o:broadcom:fabric_operating_system::::::::

History

14 Oct 2026, 19:33

Type	Values Removed	Values Added
References	~~() https://support.broadcom.com/external/content/SecurityAdvisories/0/39163 -~~	() https://support.broadcom.com/external/content/SecurityAdvisories/0/39163 - Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.7
CPE		cpe:2.3:o:broadcom:fabric_operating_system::::::::
First Time		Broadcom fabric Operating System Broadcom

08 Oct 2026, 05:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 05:17

Updated : 2026-10-14 19:33

NVD link : CVE-2026-87663

Mitre link : CVE-2026-87663

CVE.ORG link : CVE-2026-87663

JSON object : View

Products Affected

broadcom

fabric_operating_system

CWE

CWE-290

Authentication Bypass by Spoofing

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