CVE-2026-87683

Multiple stack-based buffer overflow vulnerabilities exist in the REST API management component of Brocade Fabric OS versions prior to 10.0.1. When processing API request payloads (such as device configuration attributes or port mapping requests) the REST API service fails to properly validate incoming array counts and string lengths against internal buffer capacities. An authenticated attacker with REST API access can transmit crafted, oversized request parameters to induce memory corruption on the execution stack. This may result in a denial-of-service condition (daemon crash) or potential arbitrary code execution within the management process context.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.broadcom.com/external/content/SecurityAdvisories/0/39077	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

13 Oct 2026, 17:27

Type	Values Removed	Values Added
CPE		cpe:2.3:o:broadcom:fabric_operating_system::::::::
References	~~() https://support.broadcom.com/external/content/SecurityAdvisories/0/39077 -~~	() https://support.broadcom.com/external/content/SecurityAdvisories/0/39077 - Vendor Advisory
First Time		Broadcom fabric Operating System Broadcom
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8

08 Oct 2026, 02:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 02:16

Updated : 2026-10-13 17:27

NVD link : CVE-2026-87683

Mitre link : CVE-2026-87683

CVE.ORG link : CVE-2026-87683

JSON object : View

Products Affected

broadcom

fabric_operating_system

CWE

CWE-121

Stack-based Buffer Overflow

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