An unauthenticated network-based attacker can query specific internal management endpoints on Brocade ASCG versions before 3.5.0 to enumerate the configuration details and state of managed Brocade Fabric OS (FOS) switches. This results in the unauthorized disclosure of the customer's SAN fabric management topology and switch connectivity attributes.

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00153.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Brocade Brocade Active Support Connectivity Gateway unaffected
Version Status Constraints
0 affected < 3.5.0

No data.

No data.

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Vendors Products
Broadcom Subscribe
Brocade Active Support Connectivity Gateway Subscribe

Project Subscriptions

Vendors Products
Broadcom Subscribe
Brocade Active Support Connectivity Gateway Subscribe
Advisories

No advisories yet.

Fixes

Solution

Security update provided in Brocade ASCG 3.5.0

Workaround

No workaround given by the vendor.

References
Link Providers
https://support.broadcom.com/external/content/SecurityAdvisories/0/38393 cve-icon cve-icon
History

Fri, 09 Oct 2026 07:30:00 +0000

Type Values Removed Values Added
First Time appeared Broadcom
Broadcom brocade Active Support Connectivity Gateway
Vendors & Products Broadcom
Broadcom brocade Active Support Connectivity Gateway

Thu, 08 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 08 Oct 2026 08:45:00 +0000

Type Values Removed Values Added
Title Unauthenticated Disclosure of SAN Fabric Management Topology via Internal Endpoints

Thu, 08 Oct 2026 07:15:00 +0000

Type Values Removed Values Added
Description An unauthenticated network-based attacker can query specific internal management endpoints on Brocade ASCG versions before 3.5.0 to enumerate the configuration details and state of managed Brocade Fabric OS (FOS) switches. This results in the unauthorized disclosure of the customer's SAN fabric management topology and switch connectivity attributes.
Weaknesses CWE-200
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: brocade

Published:

Updated: 2026-10-08T17:54:34.390Z

Reserved: 2026-09-08T21:56:45.681Z

Link: CVE-2026-87426

cve-icon Vulnrichment

Updated: 2026-10-08T15:14:37.219Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-08T07:16:33.270

Modified: 2026-10-08T20:08:45.857

Link: CVE-2026-87426

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-09T07:15:09Z

Weaknesses