CVE-2026-77903 Microsoft Dataverse Elevation of Privilege Vulnerability

{
  "id": "c379a578c8bc78afe5efa9277bd4a833e1687e769cd3104adc969461acc70bf8",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77903",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-77903 Microsoft Dataverse Elevation of Privilege Vulnerability",
    "summary": "An authentication bypass by spoofing in Microsoft Dataverse could let an unauthorized attacker elevate privileges over a network.",
    "evidence": "Authentication bypass by spoofing in Microsoft Dataverse allows an unauthorized attacker to elevate privileges over a network.",
    "products": [
      {
        "name": {
          "value": "Microsoft Dataverse",
          "evidence": "Authentication bypass by spoofing in Microsoft Dataverse"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-77903",
        "evidence": "CVE-2026-77903 Microsoft Dataverse Elevation of Privilege Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 26092,
  "published_at": "2026-09-17T14:00:00+00:00"
}