CVE-2026-78516 Windows Storage Information Disclosure Vulnerability

{
  "id": "6f5f772917bb5eeddd6f19f77d0afebba980bcd3bd54a1268804b7230c5b6a12",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78516",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-78516 Windows Storage Information Disclosure Vulnerability",
    "summary": "A buffer over-read in Windows Storage may allow an unauthorized attacker to disclose information through a physical attack.",
    "evidence": "Buffer over-read in Windows Storage allows an unauthorized attacker to disclose information with a physical attack.",
    "products": [
      {
        "name": {
          "value": "Windows Storage",
          "evidence": "Buffer over-read in Windows Storage"
        },
        "prerequisites": [
          {
            "value": "a physical attack",
            "evidence": "with a physical attack"
          }
        ],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-78516",
        "evidence": "CVE-2026-78516 Windows Storage Information Disclosure Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 27140,
  "published_at": "2026-09-08T14:00:00+00:00"
}