[ CVE-2026-85421 · Published 8 Oct 2026 ]

Vulnerability in Brocade Active Support Connectivity Gateway

CVSS 8.8 EPSS <1%No fix listed yet

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.