Vulnerability Details CVE-2026-87426
An unauthenticated network-based attacker can query specific internal management endpoints on Brocade ASCG versions before 3.5.0 to enumerate the configuration details and state of managed Brocade Fabric OS (FOS) switches. This results in the unauthorized disclosure of the customer's SAN fabric management topology and switch connectivity attributes.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 4.0%
CVSS Severity
CVSS v3 Score 4.3
Products affected by CVE-2026-87426
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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