{"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":"2026-10-08T00:57:36.385Z"},"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":"<p>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.</p>"}]}],"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"}}}}