CVE-2026-94583

A race condition vulnerability exists in the request processing logic of the REST management interface on Brocade Fabric OS versions before 10.0.1. When handling concurrent incoming network management FCIP requests, a timing window exists between when a request populates the address variable and when the service constructs and returns the response context. As a result, the first request adopts the modified context, causing the service to return sensitive management details or configuration data belonging to the second context back to the original requester.

CVSS v3 2.6 LOW

2.6^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.2 / Impact : 1.4

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://support.broadcom.com/external/content/SecurityAdvisories/0/39159	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*

History

14 Oct 2026, 14:07

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 2.6
CPE		cpe:2.3:o:broadcom:fabric_operating_system::::::::
First Time		Broadcom fabric Operating System Broadcom
References	~~() https://support.broadcom.com/external/content/SecurityAdvisories/0/39159 -~~	() https://support.broadcom.com/external/content/SecurityAdvisories/0/39159 - Vendor Advisory

08 Oct 2026, 03:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 03:16

Updated : 2026-10-14 14:07

NVD link : CVE-2026-94583

Mitre link : CVE-2026-94583

CVE.ORG link : CVE-2026-94583

JSON object : View

Products Affected

broadcom

fabric_operating_system

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

{"id": "CVE-2026-94583", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-94583", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-08T15:18:42.457761Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 2.6, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 1.2}], "cvssMetricV40": [{"type": "Secondary", "source": "sirt@brocade.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 2.1, "Automatable": "NOT_DEFINED", "attackVector": "ADJACENT", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "sirt@brocade.com", "affectedData": [{"vendor": "Brocade", "product": "Fabric OS", "versions": [{"status": "affected", "version": "0", "lessThan": "10.0.1", "versionType": "Brocade FabricOS"}], "defaultStatus": "unaffected"}]}], "published": "2026-10-08T03:16:38.120", "references": [{"url": "https://support.broadcom.com/external/content/SecurityAdvisories/0/39159", "tags": ["Vendor Advisory"], "source": "sirt@brocade.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "sirt@brocade.com", "description": [{"lang": "en", "value": "CWE-362"}]}], "descriptions": [{"lang": "en", "value": "A race condition vulnerability exists in the request processing logic of the REST management interface on Brocade Fabric OS versions before 10.0.1. When handling concurrent incoming network management FCIP requests, a timing window exists between when a request populates the address variable and when the service constructs and returns the response context. As a result, the first request adopts the modified context, causing the service to return sensitive management details or configuration data belonging to the second context back to the original requester."}], "lastModified": "2026-10-14T14:07:38.660", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B3B6713E-1D79-470C-97F0-DCFE4FD6B90A", "versionEndExcluding": "10.0.1"}], "operator": "OR"}]}], "sourceIdentifier": "sirt@brocade.com"}