Buffer overflow in Brocade Fabric OS FSPF diagnostic routines
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
Brocade Fabric OS versions before 10.0.1 contain a buffer overflow in the internal diagnostic and route validation routines of the Fabric Shortest Path First (FSPF) protocol component. An input processing flaw lets diagnostic state payloads exceed allocated memory boundaries, matching CWE-120. The code path is not directly reachable through standard user interfaces or CLI management commands, so an attacker must chain or link other vulnerabilities to reach it. Successful exploitation can crash the routing daemon (denial of service) or potentially execute arbitrary code within the routing daemon's context.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
A memory buffer overflow vulnerability exists in the internal diagnostic and route validation routines used by the Fabric Shortest Path First (FSPF) protocol component of Brocade Fabric OS versions before 10.0.1. While this code path is part of internal diagnostic functionality and is not directly accessible via standard user interfaces or CLI management commands, an input processing flaw allows incoming or internally routed diagnostic state payloads to exceed allocated memory boundaries. An attacker that is able to chain or link other vulnerabilities to exploit this internal diagnostic could cause a heap- or stack-based memory overrun, resulting in a daemon crash (Denial of Service) or potential arbitrary code execution within the context of the routing daemon.
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 or later, which is listed as the fixed version. The sources do not list an 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-2026-94582
- 2026-10-08 Alias added: GHSA-7gvw-9x94-58g3
- 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-2026-94582 · CVE Program
- CVE-2026-94582 · NVD
- FIRST EPSS
- GHSA-7gvw-9x94-58g3 · GitHub Advisory Database · CC BY 4.0
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