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          "\u003ca href=\"https://www.twitter.com/guhe120\"\u003eYuki Chen\u003c/a\u003e with \u003ca href=\"https://www.cyberkl.com/\"\u003eCyber KunLun\u003c/a\u003e"
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        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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    "notes": [
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        "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.",
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        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
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      {
        "category": "self",
        "summary": "CVE-2023-21712 Windows Point-to-Point Tunneling Protocol Remote Code Execution Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21712"
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        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-21712.json"
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        "date": "2025-01-01T00:35:27.411Z",
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          "summary": "Information published. This CVE was addressed by updates that were released in November 2022, but the CVE was inadvertently omitted from the November 2022 Security Updates. This is an informational change only. Customers who have already installed the November 2022 updates do not need to take any further action."
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          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
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        {
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          "text": "Successful exploitation of this vulnerability requires an attacker to win a race condition.",
          "title": "According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?"
        },
        {
          "category": "faq",
          "text": "An unauthenticated attacker could send a specially crafted protocol message to a Routing and Remote Access Service (RRAS) server, which could lead to remote code execution (RCE) on the RAS server machine.",
          "title": "How could an attacker exploit this vulnerability?"
        }
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          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21712"
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.1,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
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      "threats": [
        {
          "category": "impact",
          "details": "Remote Code Execution"
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        {
          "category": "exploit_status",
          "details": "Exploited:No;Latest Software Release:Exploitation Unlikely"
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      ],
      "title": "Windows Point-to-Point Tunneling Protocol Remote Code Execution Vulnerability"
    }
  ]
}