CVE-2026-85421

A critical security vulnerability has been identified in Brocade ASCG versions before 3.5.0. The HTTPS service fails to properly enforce authentication or access control checks on incoming requests. An unauthenticated attacker with network access can issue control commands, alter cluster states, and modify system configurations, leading to a complete compromise of the streaming service control plane.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.broadcom.com/external/content/SecurityAdvisories/0/38378	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:*:*:*:*:*:*:*:*

History

14 Oct 2026, 18:46

Type	Values Removed	Values Added
First Time		Broadcom brocade Active Support Connectivity Gateway Broadcom
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8
References	~~() https://support.broadcom.com/external/content/SecurityAdvisories/0/38378 -~~	() https://support.broadcom.com/external/content/SecurityAdvisories/0/38378 - Vendor Advisory
CPE		cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway::::::::

08 Oct 2026, 07:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 07:16

Updated : 2026-10-14 18:46

NVD link : CVE-2026-85421

Mitre link : CVE-2026-85421

CVE.ORG link : CVE-2026-85421

JSON object : View

Products Affected

broadcom

brocade_active_support_connectivity_gateway

CWE

CWE-306

Missing Authentication for Critical Function

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