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TI-2026-69455 Aliases CVE-2026-87424GHSA-3fcc-27mp-9h8c

Hard-coded key in Brocade ASCG SupportLink API enables auth bypass

Priority LOW 38CWE-321Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-321.

Summary

Brocade Active Support Connectivity Gateway (ASCG) versions before 3.5.0 contain a hard-coded cryptographic key in the SupportLink API authentication component. A remote attacker with low privileges can bypass authentication across deployments, which can fully compromise confidentiality, integrity and availability of the affected system. The flaw is tracked as CWE-321.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A vulnerability in the SupportLink API authentication component of Brocade ASCG versions prior to 3.5.0 allows an attacker to bypass authentication across deployments due to the use of a hard coded cryptographic key.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0019 8th percentileScored 2026-11-07
Fix Fixed Brocade Active Support Connectivity Gateway (Brocade): 3.5.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
BrocadeBrocade Active Support Connectivity Gatewaybefore 3.5.03.5.0Patch availableCNA
  • Brocade Active Support Connectivity Gateway VendorBrocade Affected before 3.5.0 Fixed in 3.5.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:*:*:*:*:*:*:*:*before 3.5.0VulnerableBroadcom
  • cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:*:*:*:*:*:*:*:* Versions before 3.5.0 Vulnerable ·Broadcom

Remediation

Upgrade Brocade Active Support Connectivity Gateway to version 3.5.0 or later, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Brocade Active Support Connectivity Gateway (Brocade) Fixed in 3.5.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Brocade Active Support Connectivity Gateway 3.5.0

    12 records Highest priority Priority LOW 12 LOW

    Other records, highest priority first

    • TI-2026-69450 Missing authentication in Brocade ASCG management servicePriority LOW 39
    • TI-2026-69448 Path traversal in Brocade ASCG HTTP service allows arbitrary file accessPriority LOW 39
    • TI-2026-69447 Eval injection in Brocade Active Support Connectivity GatewayPriority LOW 39
    Show all 12 records →

Timeline

  1. 2026-10-08 Threatist record created from CVE-2026-87424
  2. 2026-10-08 CISA SSVC decision points changed
  3. 2026-10-08 Priority changed: MEDIUM → LOW
  4. 2026-10-15 Alias added: GHSA-3fcc-27mp-9h8c
  5. 2026-10-15 CVSS score added · NVD

References

Advisory 1

  • TI-2025-01721 Code injection exposure in Fabric OS 9.1.0 through 9.1.1d6 KEVCVSS 4.0HIGH 8.6
  • TI-2016-06760 Path traversal in Brocade Network Advisor versions released prior to and including 14.0.2 CVSS 3.0CRITICAL 9.8
  • TI-2024-19729 hard-coded credentials in the documentation that appear as the appliance root password CVSS 3.1CRITICAL 9.8
  • TI-2016-06762 Path traversal in Brocade Network Advisor versions released prior to and including 14.0.2 CVSS 3.0HIGH 7.5
  • TI-2018-04739 OS command injection in Brocade Network Advisor CVSS 3.0CRITICAL 9.8
  • TI-2016-06761 Path traversal in Brocade Network Advisor versions released prior to and including 14.0.2 CVSS 3.0HIGH 7.5
See all 191 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences