CVE-2026-78451 Microsoft Windows SCSI Class System File Elevation of Privilege Vulnerability

{
  "id": "7f3ecc5804d2a48fe3f42feb290fccfede83fade1ed7a3d2aed723c14e776472",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78451",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-78451 Microsoft Windows SCSI Class System File Elevation of Privilege Vulnerability",
    "summary": "An untrusted pointer dereference in the Microsoft Windows SCSI Class System File may allow an unauthorized attacker to elevate privileges through a physical attack.",
    "evidence": "Untrusted pointer dereference in Microsoft Windows SCSI Class System File allows an unauthorized attacker to elevate privileges with a physical attack.",
    "products": [
      {
        "name": {
          "value": "Microsoft Windows SCSI Class System File",
          "evidence": "Microsoft Windows SCSI Class System File"
        },
        "prerequisites": [
          {
            "value": "physical attack",
            "evidence": "with a physical attack"
          }
        ],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-78451",
        "evidence": "CVE-2026-78451"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 27128,
  "published_at": "2026-09-08T14:00:00+00:00"
}