{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86573","assignerOrgId":"50d0f415-c707-4733-9afc-8f6c0e9b3f82","state":"PUBLISHED","assignerShortName":"Hitachi","dateReserved":"2026-09-08T05:39:06.584Z","datePublished":"2026-10-14T01:46:58.245Z","dateUpdated":"2026-10-18T13:54:09.447Z"},"containers":{"cna":{"providerMetadata":{"orgId":"50d0f415-c707-4733-9afc-8f6c0e9b3f82","shortName":"Hitachi","dateUpdated":"2026-10-14T01:46:58.245Z"},"title":"Out-of-bounds Write Vulnerability in Hitachi Disk Array Driver for AIX, Hitachi Disk Array Driver for Virtual I/O Server","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-787","description":"CWE-787 Out-of-bounds write","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-100","descriptions":[{"lang":"en","value":"CAPEC-100 Overflow Buffers"}]}],"affected":[{"vendor":"Hitachi","product":"Hitachi Disk Array Driver for AIX","versions":[{"status":"affected","version":"01-00","lessThan":"01-23-/A","changes":[{"at":"01-23-/A","status":"unaffected"}],"versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"Hitachi","product":"Hitachi Disk Array Driver for Virtual I/O Server","versions":[{"status":"affected","version":"01-04","lessThan":"01-23-/A","changes":[{"at":"01-23-/A","status":"unaffected"}],"versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"Out-of-bounds write vulnerability in Hitachi Disk Array Driver for AIX and Hitachi Disk Array Driver for Virtual I/O Server.\n\nThis issue affects Hitachi Disk Array Driver for AIX: from 01-00 before 01-23-/A; Hitachi Disk Array Driver for Virtual I/O Server: from 01-04 before 01-23-/A.","supportingMedia":[{"type":"text/html","base64":false,"value":"Out-of-bounds write vulnerability in Hitachi Disk Array Driver for AIX and Hitachi Disk Array Driver for Virtual I/O Server.<p>This issue affects Hitachi Disk Array Driver for AIX: from 01-00 before 01-23-/A; Hitachi Disk Array Driver for Virtual I/O Server: from 01-04 before 01-23-/A.</p>"}]}],"references":[{"url":"https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-137/index.html"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"HIGH","baseSeverity":"MEDIUM","baseScore":5.1,"vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H"}}],"source":{"advisory":"hitachi-sec-2026-137","discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-86573","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-18T13:28:56.196323Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-18T13:54:09.447Z"}}]}}