CVE-2026-100208 Microsoft Office Outlook Remote Code Execution Vulnerability

{
  "id": "672c71a0c4c1e0dcb6ba22adcc6a50f1369dbb077bbe4ad13731778988a028a8",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100208",
  "method": "llm",
  "payload": {
    "kind": "other",
    "title": "CVE-2026-100208 Microsoft Office Outlook Remote Code Execution Vulnerability",
    "summary": "This informational update says the CVE was addressed by updates released in August 2026, but was omitted from that month's Security Updates. Customers who installed those updates need no further action.",
    "evidence": "This CVE was addressed by updates that were released in August 2026, but the CVE was inadvertently omitted from the August 2026 Security Updates. This is an informational change only.",
    "products": [
      {
        "name": {
          "value": "Microsoft Office Outlook",
          "evidence": "CVE-2026-100208 Microsoft Office Outlook Remote Code Execution Vulnerability"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-100208",
        "evidence": "CVE-2026-100208 Microsoft Office Outlook Remote Code Execution Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 26082,
  "published_at": "2026-09-25T14:00:00+00:00"
}