{
  "id": "CVE-2021-31207",
  "sourceIdentifier": "secure@microsoft.com",
  "published": "2021-05-11T19:15:10.397",
  "lastModified": "2022-07-12T17:42:04.277",
  "vulnStatus": "Analyzed",
  "cisaExploitAdd": "2021-11-03",
  "cisaActionDue": "2021-11-17",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Microsoft Exchange Server Security Feature Bypass Vulnerability",
  "descriptions": [
    {
      "lang": "en",
      "value": "Microsoft Exchange Server Security Feature Bypass Vulnerability"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Omisi\u00f3n de la Caracter\u00edstica de Seguridad de Microsoft Exchange Server"
    }
  ],
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          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.2,
          "baseSeverity": "HIGH"
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          "accessComplexity": "LOW",
          "authentication": "SINGLE",
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        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
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        "obtainAllPrivilege": false,
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        "obtainOtherPrivilege": false,
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      "description": [
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          "value": "CWE-22"
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  "references": [
    {
      "url": "http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html",
      "source": "secure@microsoft.com",
      "tags": [
        "Exploit",
        "Third Party Advisory",
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}