Read the docs
TI-2026-69459 Aliases CVE-2026-87661GHSA-mxfh-hfg3-4hfp

Brocade Fabric OS lets corrupted config block web interface startup

Priority LOW 29CWE-93Published · 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 · None · High
Fix status
Fixed

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

Summary

Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1 are affected. The software accepts Apache configuration file data directly during service setup or re-initialization without neutralizing CRLF sequences (CWE-93). An adjacent attacker with high privileges who corrupts the configuration structure can stop the web management service from starting or recovering, causing a persistent denial of service of the administrative web interface.

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

Description from the CNA

Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1 directly accepts Apache configuration file data during service setup or re-initialization. An attacker capable of corrupting the configuration structure will prevent the web management service from starting or recovering during service bring-up, leading to a persistent Denial of Service (DoS) of the administrative web interface.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00193 9th percentileScored 2026-11-07
Fix Fixed Fabric OS (Brocade): 9.2.2d

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 9.2.2d; 10.0.0 – 10.0.0a19.2.2dPatch availableCNA
  • Fabric OS VendorBrocade Affected before 9.2.2d; 10.0.0 – 10.0.0a1 Fixed in 9.2.2d Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*before 9.2.2d; 10.0.0 to before 10.0.1VulnerableBroadcom
  • cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:* Versions before 9.2.2d; 10.0.0 to before 10.0.1 Vulnerable ·Broadcom

Remediation

Upgrade Fabric OS to version 9.2.2d. The sources list no fixed version for Brocade Fabric OS 10.0.0 through 10.0.0a1.

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

  • Fix · CNA Fabric OS (Brocade) Fixed in 9.2.2d

Fixed in the same release

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

  • Release ·

    Brocade Fabric OS 9.2.2d

    21 records Highest priority Priority MEDIUM 3 MEDIUM, 18 LOW

    Other records, highest priority first

    • TI-2026-69357 OS command injection in Brocade Fabric OS time zone managementPriority MEDIUM 44
    • TI-2026-69483 Command injection in Brocade Fabric OS WebTools interfacePriority MEDIUM 42
    • TI-2026-69481 OS command injection in Brocade Fabric OS REST API interfacePriority MEDIUM 42
    Show all 21 records →

Timeline

  1. 2026-10-08 Threatist record created from CVE-2026-87661
  2. 2026-10-08 CISA SSVC decision points changed
  3. 2026-10-08 Priority changed: MEDIUM → LOW
  4. 2026-10-15 Alias added: GHSA-mxfh-hfg3-4hfp
  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