{
  "cveId": "CVE-2020-1025",
  "url": "https://patchblox.com/security/cve/CVE-2020-1025",
  "summary": "CVE-2020-1025 is fixed in 6 products on 1 platform, first by KB4571334, released July 14, 2020. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "Microsoft Office Elevation of Privilege Vulnerability",
  "description": "\u003Cp\u003EAn elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access.\u003C/p\u003E\n\u003Cp\u003ETo exploit this vulnerability, an attacker would need to modify the token.\u003C/p\u003E\n\u003Cp\u003EThe update addresses the vulnerability by modifying how Microsoft SharePoint Server and Skype for Business Server validate tokens.\u003C/p\u003E",
  "published": "2020-07-14T12:00:00Z",
  "severity": "Critical",
  "epss": 0.05853,
  "epssPercentile": 0.93233,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1025",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Microsoft Lync Server 2013",
      "fixedVersion": "",
      "fix": "KB4571334",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571334",
      "released": "2020-07-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft SharePoint Enterprise Server 2016",
      "fixedVersion": "",
      "fix": "KB4484436",
      "url": "https://patchblox.com/security/fix/microsoft/kb4484436",
      "released": "2020-07-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft SharePoint Foundation 2013 Service Pack 1",
      "fixedVersion": "",
      "fix": "KB4484448",
      "url": "https://patchblox.com/security/fix/microsoft/kb4484448",
      "released": "2020-07-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Microsoft SharePoint Server 2019",
      "fixedVersion": "",
      "fix": "KB4484453",
      "url": "https://patchblox.com/security/fix/microsoft/kb4484453",
      "released": "2020-07-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Skype for Business Server 2015 CU 8",
      "fixedVersion": "",
      "fix": "KB4571333",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571333",
      "released": "2020-07-14T12:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Skype for Business Server 2019  CU2",
      "fixedVersion": "",
      "fix": "KB4571332",
      "url": "https://patchblox.com/security/fix/microsoft/kb4571332",
      "released": "2020-07-14T12:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}