Heap-based Buffer Overflow Vulnerability in JP1/Base

{
  "id": "9ccf6b38633880c2d2f1b1a412930861d6b250826281ebfbae94f574c72e8bf7",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-86574",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Heap-based Buffer Overflow Vulnerability in JP1/Base",
    "summary": "Heap-based Buffer Overflow Vulnerability in JP1/Base. This issue affects JP1/Base: from 11-00 before 12-50-54.",
    "evidence": "cve:CVE-2026-86574",
    "products": [
      {
        "name": {
          "value": "JP1/Base",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-86574",
      "aliases": [
        "CVE-2026-86574"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 9.8,
            "attackVector": "NETWORK",
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "integrityImpact": "HIGH",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "confidentialityImpact": "HIGH"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "Hitachi",
          "product": "JP1/Base",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "12-50-54",
                  "status": "unaffected"
                },
                {
                  "at": "11-50-36",
                  "status": "unaffected"
                }
              ],
              "version": "11-00",
              "lessThan": "12-50-54",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-27T09:37:09.275Z",
      "provider": "cve",
      "references": [
        "https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-156/index.html"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "50d0f415-c707-4733-9afc-8f6c0e9b3f82",
          "shortName": "Hitachi",
          "dateUpdated": "2026-10-27T09:37:09.275Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-86574",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 391575,
  "published_at": "2026-10-27T09:37:09.275+00:00"
}