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TI-2026-69348 Aliases CVE-2026-87684GHSA-jhmq-9587-7vfc

Stack-based buffer overflow in Brocade Fabric OS SNMP daemon

Priority MEDIUM 40CWE-121Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

Brocade Fabric OS versions before 10.0.1 are affected. The SNMP daemon's statistics gathering handler for SNMPv3 packets copies user-supplied context name data into a fixed-size stack buffer without checking its length (CWE-121). A remote, unauthenticated attacker under default configuration can corrupt memory, crashing the daemon for denial of service or possibly executing arbitrary code.

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 SNMP daemon request handling of Brocade Fabric versions before 10.0.1. When processing an incoming SNMPv3 packet, an internal statistics gathering handler copies user-supplied context name data into a fixed-size buffer without properly validating the length of the string. A remote, unauthenticated attacker (under default configuration) can exploit this vulnerability by sending a specially crafted SNMPv3 packet, leading to memory corruption, daemon crash (Denial of Service), or potential arbitrary code execution.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00577 47th 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
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
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

Upgrade Brocade Fabric OS to 10.0.1, the fixed version.

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-2026-69337 Stack-based buffer overflows in Brocade Fabric OS REST APIPriority MEDIUM 40
    Show all 22 records →

Timeline

  1. 2026-10-08 Threatist record created from CVE-2026-87684
  2. 2026-10-08 Alias added: GHSA-jhmq-9587-7vfc
  3. 2026-10-08 CISA SSVC decision points changed
  4. 2026-10-08 Priority changed: MEDIUM → LOW
  5. 2026-10-14 CVSS score added · NVD
  6. 2026-10-16 Priority changed: LOW → MEDIUM

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