CVE-2026-65801 Microsoft Exchange Online Elevation of Privilege Vulnerability

{
  "id": "996e92b907939a9399f50e5720f725d07cc3186bb77e7b7374b2ac1d89cd3841",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65801",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-65801 Microsoft Exchange Online Elevation of Privilege Vulnerability",
    "summary": "An unauthorized attacker could exploit server-side request forgery in Microsoft Exchange Online over a network to elevate privileges.",
    "evidence": "Server-side request forgery (ssrf) in Microsoft Exchange Online allows an unauthorized attacker to elevate privileges over a network.",
    "products": [
      {
        "name": {
          "value": "Microsoft Exchange Online",
          "evidence": "CVE-2026-65801 Microsoft Exchange Online Elevation of Privilege Vulnerability"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-65801",
        "evidence": "CVE-2026-65801 Microsoft Exchange Online Elevation of Privilege Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 27535,
  "published_at": "2026-08-20T14:00:00+00:00"
}