CVE-2026-83759 Windows Encrypting File System (EFS) Remote Code Execution Vulnerability

{
  "id": "a001d45e2b7d768ec4219d2127c11e3d400a7807f71fc18539a30ad053b5110f",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83759",
  "method": "llm",
  "payload": {
    "kind": "other",
    "title": "CVE-2026-83759 Windows Encrypting File System (EFS) Remote Code Execution Vulnerability",
    "summary": "Improper code-generation control in Windows EFS could allow an authorized attacker to execute code over a network.",
    "evidence": "Improper control of generation of code ('code injection') in Windows Encrypting File System (EFS) allows an authorized attacker to execute code over a network.",
    "products": [
      {
        "name": {
          "value": "Windows Encrypting File System (EFS)",
          "evidence": "Windows Encrypting File System (EFS)"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-83759",
        "evidence": "CVE-2026-83759 Windows Encrypting File System (EFS) Remote Code Execution Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 24984,
  "published_at": "2026-10-13T14:00:00+00:00"
}