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TI-2026-69341 Aliases CVE-2026-87668GHSA-ph5j-f53x-2pfj

Stack-based buffer overflow in Brocade Fabric OS diagnostic utility

Priority LOW 31CWE-121Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Brocade Fabric OS versions before 10.0.1 contain a stack-based buffer overflow in the diagnostic execution utility. The utility stores tokenized command arguments in an internal array without checking its maximum capacity (CWE-121). An authenticated user with administrative access can overwrite memory and crash the process, causing a denial of service.

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

Description from the CNA

A stack-based buffer overflow vulnerability exists in the diagnostic execution utility of Brocade Fabric OS versions before 10.0.1. When processing command arguments for diagnostic operations, the utility tokenizes user-supplied input into an internal argument array without enforcing boundary checks on the maximum array capacity. An authenticated user with administrative access can exploit this vulnerability by supplying a crafted diagnostic command string containing an excessive number of tokenized arguments. This leads to a memory overwrite resulting in a denial of service (process crash).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0039 33rd percentileScored 2026-11-07
Fix Fixed Fabric OS (Brocade): 10.0.1

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

VendorProductAffected versionsFixed inStatusSource
BrocadeFabric OSbefore 10.0.110.0.1Patch availableCNA
  • Fabric OS VendorBrocade Affected before 10.0.1 Fixed in 10.0.1 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*before 10.0.1VulnerableBroadcom
  • cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:* Versions before 10.0.1 Vulnerable ·Broadcom

Remediation

Update Brocade Fabric OS to version 10.0.1, which fixes this flaw.

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
    Show all 22 records →

Timeline

  1. 2026-10-08 Threatist record created from CVE-2026-87668
  2. 2026-10-08 Alias added: GHSA-ph5j-f53x-2pfj
  3. 2026-10-08 CISA SSVC decision points changed
  4. 2026-10-08 Priority changed: MEDIUM → LOW
  5. 2026-10-13 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