{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-87681", "assignerOrgId": "87b297d7-335e-4844-9551-11b97995a791", "state": "PUBLISHED", "assignerShortName": "brocade", "dateReserved": "2026-09-08T22:51:12.186Z", "datePublished": "2026-10-08T00:57:36.385Z", "dateUpdated": "2026-10-08T13:41:19.896Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "87b297d7-335e-4844-9551-11b97995a791", "shortName": "brocade", "dateUpdated": "2026-10-08T00:57:36.385Z" }, "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-269", "description": "CWE-269: Improper Privilege Management Summary", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-122", "descriptions": [ { "lang": "en", "value": "CAPEC-122 Privilege Abuse" } ] } ], "affected": [ { "vendor": "Brocade", "product": "Fabric OS", "versions": [ { "status": "affected", "version": "0", "lessThan": "10.0.1", "versionType": "Brocade FabricOS" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "An Access Control Bypass vulnerability exists in the Role-Based Access Control (RBAC) validation engine of Brocade Fabric OS versions before 10.0.1. When processing certain management protocol operations, the RBAC engine incorrectly categorizes non-standard action opcodes during permission checks. This allows authenticated users with read-only management privileges to bypass access controls and execute restricted administrative operations.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "

An Access Control Bypass vulnerability exists in the Role-Based Access Control (RBAC) validation engine of Brocade Fabric OS versions before 10.0.1. When processing certain management protocol operations, the RBAC engine incorrectly categorizes non-standard action opcodes during permission checks. This allows authenticated users with read-only management privileges to bypass access controls and execute restricted administrative operations.

" } ] } ], "references": [ { "url": "https://support.broadcom.com/external/content/SecurityAdvisories/0/39075" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N" } } ], "solutions": [ { "lang": "en", "value": "Security update is provided in Brocade Fabric OS 10.0.1", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "Security update is provided in Brocade Fabric OS 10.0.1" } ] } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.5" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-08T13:39:49.969555Z", "id": "CVE-2026-87681", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-08T13:41:19.896Z" } } ] } }