Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 8.5%
CVSS Severity
CVSS v3 Score 8.8
Products affected by CVE-2026-85421
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:1.0.0
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:1.1.0
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:1.2.0
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:1.3.0
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:1.3.0a
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:2.0.0
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:2.1.0a
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:2.1.1_01
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:3.0.0
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:3.0.0a
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:3.1.0
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:3.2.0
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:3.3.0
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:3.3.0a
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cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:3.4.0