Information disclosure in Brocade Fabric OS SupportLink utilities
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-532.
Summary
Brocade Fabric OS versions before 10.0.1 are affected. When SupportLink is configured to use an authenticated HTTP proxy, the system stores the full proxy URL in cleartext within the diagnostic collection data. This is CWE-532, insertion of sensitive information into a log file. A local user with low privileges who can access the diagnostic support bundle, such as support personnel or users with access to file shares where bundles are stored, can read the proxy credentials.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
An information disclosure vulnerability exists in the SupportLink diagnostic collection utilities of Brocade Fabric OS versions before 10.0.1. When SupportLink is configured to use an authenticated HTTP proxy, the system stores the full proxy URL. Anyone with access to the diagnostic support bundle, such as support personnel or users with access to file shares where support bundles are stored, can extract these cleartext proxy credentials.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Upgrade Brocade Fabric OS to version 10.0.1, the fixed version listed for this product. The sources list no advisory identifier for this fix.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Fabric OS (Brocade) Fixed in 10.0.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Brocade Fabric OS 10.0.1
22 records Highest priority Priority MEDIUM 4 MEDIUM, 18 LOW
Other records, highest priority first
- TI-2026-69336 OS command injection in Brocade Fabric OS management interfacePriority MEDIUM 43
- TI-2026-69334 Command injection in Brocade Fabric OS REST API management interfacePriority MEDIUM 43
- TI-2026-69348 Stack-based buffer overflow in Brocade Fabric OS SNMP daemonPriority MEDIUM 40
Timeline
- 2026-10-08 Threatist record created from CVE-2026-87672
- 2026-10-08 Alias added: GHSA-hrhr-45jg-9xm4
- 2026-10-08 CISA SSVC decision points changed
- 2026-10-08 Priority changed: MEDIUM → LOW
- 2026-10-14 CVSS score added · NVD
References
More Brocade vulnerabilities
- 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
Sources
- CVE-2026-87672 · CVE Program
- CVE-2026-87672 · NVD
- FIRST EPSS
- GHSA-hrhr-45jg-9xm4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences