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.
History

Wed, 14 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:*:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


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 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Thu, 08 Oct 2026 07:45:00 +0000

Type Values Removed Values Added
Title Unauthorized HTTPS Control Commands Enable Full Compromise in Brocade ASCG

Thu, 08 Oct 2026 06:45:00 +0000

Type Values Removed Values Added
Description 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.
Weaknesses CWE-306
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: brocade

Published: 2026-10-08T06:16:11.177Z

Updated: 2026-10-08T17:49:56.276Z

Reserved: 2026-09-03T19:44:37.306Z

Link: CVE-2026-85421

cve-icon Vulnrichment

Updated: 2026-10-08T17:49:48.870Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-08T07:16:31.883

Modified: 2026-10-14T18:46:28.640

Link: CVE-2026-85421

cve-icon Redhat

No data.