{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-87668","assignerOrgId":"87b297d7-335e-4844-9551-11b97995a791","state":"PUBLISHED","assignerShortName":"brocade","dateReserved":"2026-09-08T22:51:12.106Z","datePublished":"2026-10-08T03:00:54.306Z","dateUpdated":"2026-10-08T03:00:54.306Z"},"containers":{"cna":{"providerMetadata":{"orgId":"87b297d7-335e-4844-9551-11b97995a791","shortName":"brocade","dateUpdated":"2026-10-08T03:00:54.306Z"},"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-121","description":"CWE-121: Stack-based Buffer Overflow","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-100","descriptions":[{"lang":"en","value":"CAPEC-100 Overflow Buffers"}]}],"affected":[{"vendor":"Brocade","product":"Fabric OS","versions":[{"status":"affected","version":"0","lessThan":"10.0.1","versionType":"Brocade FabricOS"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"A stack-based buffer overflow vulnerability exists in the diagnostic execution utility of Brocade Fabric OS versions before 10.0.1. When processing command arguments for diagnostic operations, the utility tokenizes user-supplied input into an internal argument array without enforcing boundary checks on the maximum array capacity. An authenticated user with administrative access can exploit this vulnerability by supplying a crafted diagnostic command string containing an excessive number of tokenized arguments. This leads to a memory overwrite resulting in a denial of service (process crash).","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>A stack-based buffer overflow vulnerability exists in the diagnostic execution utility of Brocade Fabric OS versions before 10.0.1. When processing command arguments for diagnostic operations, the utility tokenizes user-supplied input into an internal argument array without enforcing boundary checks on the maximum array capacity. An authenticated user with administrative access can exploit this vulnerability by supplying a crafted diagnostic command string containing an excessive number of tokenized arguments. This leads to a memory overwrite resulting in a denial of service (process crash).</p>"}]}],"references":[{"url":"https://support.broadcom.com/external/content/SecurityAdvisories/0/39152"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","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":"MEDIUM","baseScore":6.9,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/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":"<div>Security update is provided in Brocade Fabric OS 10.0.1</div><div></div>"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}