{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "\u003ca href=\"https://twitter.com/ecthr0s\"\u003eGeorge Hughey\u003c/a\u003e with MSRC Vulnerabilities \u0026amp; Mitigations"
        ]
      }
    ],
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      "text": "Important"
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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
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      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
        "category": "general",
        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
      }
    ],
    "publisher": {
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      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2023-23400 Windows DNS Server Remote Code Execution Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23400"
      },
      {
        "category": "self",
        "summary": "CVE-2023-23400 Windows DNS Server Remote Code Execution Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-23400.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Exploitability Index",
        "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Windows DNS Server Remote Code Execution Vulnerability",
    "tracking": {
      "current_release_date": "2023-03-14T07:00:00.000Z",
      "generator": {
        "date": "2025-01-01T00:47:47.543Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
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      },
      "id": "msrc_CVE-2023-23400",
      "initial_release_date": "2023-03-14T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-03-14T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
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      "status": "final",
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  "vulnerabilities": [
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      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "Successful exploitation of this vulnerability requires the attacker or targeted user to have specific elevated privileges. As is best practice, regular validation and audits of administrative groups should be conducted.",
          "title": "According to the CVSS metric, privileges required is high (PR:H). What does that mean for this vulnerability?"
        }
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          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8"
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      },
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          "summary": "CVE-2023-23400 Windows DNS Server Remote Code Execution Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23400"
        },
        {
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          "summary": "CVE-2023-23400 Windows DNS Server Remote Code Execution Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23400"
        }
      ],
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          "date": "2023-03-14T07:00:00.000Z",
          "details": "10.0.17763.4131:Security Update:https://support.microsoft.com/help/5023702",
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        {
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        },
        {
          "category": "vendor_fix",
          "date": "2023-03-14T07:00:00.000Z",
          "details": "10.0.14393.5786:Security Update:https://support.microsoft.com/help/5023697",
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            "5"
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          "url": "https://support.microsoft.com/help/5023697"
        },
        {
          "category": "vendor_fix",
          "date": "2023-03-14T07:00:00.000Z",
          "details": "6.3.9600.20865:Monthly Rollup:https://support.microsoft.com/help/5023765",
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            "7"
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      ],
      "scores": [
        {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.3,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
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            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8"
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Remote Code Execution"
        },
        {
          "category": "exploit_status",
          "details": "Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Windows DNS Server Remote Code Execution Vulnerability"
    }
  ]
}