Unauthorized Disclosure Vulnerability in Brocade ASCG Product by Broadcom
CVE-2026-87426

5.3MEDIUM

Key Information:

Vendor

Brocade
Status
Brocade Active Support Connectivity Gateway
Vendor
CVE Published:
8 October 2026

What is CVE-2026-87426?

An unauthenticated network-based attacker can exploit vulnerabilities within Brocade ASCG versions prior to 3.5.0 to access internal management endpoints. This allows the attacker to enumerate sensitive configuration details and state information related to managed Brocade Fabric OS (FOS) switches. Consequently, this leads to unauthorized exposure of crucial SAN fabric management topology and switch connectivity attributes, which can pose serious security risks and data breaches.

Affected Version(s)

Brocade Active Support Connectivity Gateway 0 < 3.5.0

References

https://support.broadcom.com/external/content/SecurityAdv...

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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