CVE-2026-87668

A stack-based buffer overflow vulnerability exists in the diagnostic execution utility of Brocade Fabric OS versions before 10.0.1. When processing command arguments for diagnostic operations, the utility tokenizes user-supplied input into an internal argument array without enforcing boundary checks on the maximum array capacity. An authenticated user with administrative access can exploit this vulnerability by supplying a crafted diagnostic command string containing an excessive number of tokenized arguments. This leads to a memory overwrite resulting in a denial of service (process crash).

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.broadcom.com/external/content/SecurityAdvisories/0/39152	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

13 Oct 2026, 17:23

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5
CPE		cpe:2.3:o:broadcom:fabric_operating_system::::::::
References	~~() https://support.broadcom.com/external/content/SecurityAdvisories/0/39152 -~~	() https://support.broadcom.com/external/content/SecurityAdvisories/0/39152 - Vendor Advisory
First Time		Broadcom fabric Operating System Broadcom

08 Oct 2026, 03:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 03:16

Updated : 2026-10-13 17:23

NVD link : CVE-2026-87668

Mitre link : CVE-2026-87668

CVE.ORG link : CVE-2026-87668

JSON object : View

Products Affected

broadcom

fabric_operating_system

CWE

CWE-121

Stack-based Buffer Overflow

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