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        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
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        "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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        ],
        "category": "product_name",
        "name": "Windows Server 2012 R2 (Server Core installation)"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-35423",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "Successful exploitation of this vulnerability could allow an attacker to access limited sensitive information from system memory and may cause intermittent interruptions or reduced performance in the affected application. However, it would not allow the attacker to modify data.",
          "title": "According to the CVSS metrics, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L), no loss to integrity (I:N) and lead to some loss of availability (A:L). What is the impact of this vulnerability?"
        },
        {
          "category": "faq",
          "text": "An attacker could potentially read limited portions of memory from the affected system, which may include sensitive information being processed by the Telnet client at the time of the connection.",
          "title": "What type of information could be disclosed by this vulnerability?"
        },
        {
          "category": "faq",
          "text": "For this vulnerability to be exploited, a user would need to initiate a Telnet connection to a malicious or compromised server, allowing specially crafted authentication responses to be processed by the Telnet client. Successful exploitation requires a user to take an action before the vulnerability can be triggered.",
          "title": "According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?"
        }
      ],
      "product_status": {
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          "10483",
          "10543",
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          "11568",
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          "11571",
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          "11923",
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          "12097",
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          "12099",
          "12242",
          "12243",
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          "12389",
          "12390",
          "12436",
          "12437",
          "20437",
          "20438",
          "20853",
          "20854"
        ],
        "known_affected": [
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          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11",
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          "13",
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          "16",
          "17",
          "18",
          "19",
          "20",
          "21",
          "22",
          "23",
          "24",
          "25",
          "26",
          "27",
          "28",
          "29",
          "30",
          "31"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-35423 Windows 11 Telnet Client Information Disclosure Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35423"
        },
        {
          "category": "self",
          "summary": "CVE-2026-35423 Windows 11 Telnet Client Information Disclosure Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-35423.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-05-12T07:00:00.000Z",
          "details": "10.0.17763.8755:Security Update:https://support.microsoft.com/help/5087538",
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          "category": "vendor_fix",
          "date": "2026-05-12T07:00:00.000Z",
          "details": "10.0.20348.5139:Security Update:https://support.microsoft.com/help/5087545",
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        {
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          "date": "2026-05-12T07:00:00.000Z",
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          "url": "https://support.microsoft.com/help/5087424"
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          "date": "2026-05-12T07:00:00.000Z",
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        },
        {
          "category": "vendor_fix",
          "date": "2026-05-12T07:00:00.000Z",
          "details": "10.0.26100.32860:Security Update:https://support.microsoft.com/help/5087539",
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            "6"
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          "url": "https://support.microsoft.com/help/5087539"
        },
        {
          "category": "vendor_fix",
          "date": "2026-05-12T07:00:00.000Z",
          "details": "10.0.26100.32772:Security Hotpatch Update:https://support.microsoft.com/help/5087423",
          "product_ids": [
            "5",
            "6"
          ],
          "url": "https://support.microsoft.com/help/5087423"
        },
        {
          "category": "vendor_fix",
          "date": "2026-05-12T07:00:00.000Z",
          "details": "10.0.26200.8457:Security Update:https://support.microsoft.com/help/5089549",
          "product_ids": [
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            "3"
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          "url": "https://support.microsoft.com/help/5089549"
        },
        {
          "category": "vendor_fix",
          "date": "2026-05-12T07:00:00.000Z",
          "details": "10.0.26200.8390:Security Hotpatch Update:https://support.microsoft.com/help/5089466",
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        },
        {
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          "date": "2026-05-12T07:00:00.000Z",
          "details": "10.0.22631.7079:Security Update:https://support.microsoft.com/help/5087420",
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          "url": "https://support.microsoft.com/help/5087420"
        },
        {
          "category": "vendor_fix",
          "date": "2026-05-12T07:00:00.000Z",
          "details": "10.0.25398.2330:Security Update:https://support.microsoft.com/help/5087541",
          "product_ids": [
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          "url": "https://support.microsoft.com/help/5087541"
        },
        {
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        {
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          "url": "https://support.microsoft.com/help/5089548"
        },
        {
          "category": "vendor_fix",
          "date": "2026-05-12T07:00:00.000Z",
          "details": "10.0.14393.9140:Security Update:https://support.microsoft.com/help/5087537",
          "product_ids": [
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            "25",
            "27",
            "24"
          ],
          "url": "https://support.microsoft.com/help/5087537"
        },
        {
          "category": "vendor_fix",
          "date": "2026-05-12T07:00:00.000Z",
          "details": "6.2.9200.26079:Monthly Rollup:https://support.microsoft.com/help/5087470",
          "product_ids": [
            "31",
            "30"
          ],
          "url": "https://support.microsoft.com/help/5087470"
        },
        {
          "category": "vendor_fix",
          "date": "2026-05-12T07:00:00.000Z",
          "details": "6.3.9600.23181:Monthly Rollup:https://support.microsoft.com/help/5087471",
          "product_ids": [
            "29",
            "28"
          ],
          "url": "https://support.microsoft.com/help/5087471"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 4.7,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
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            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
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            "24",
            "25",
            "26",
            "27",
            "28",
            "29",
            "30",
            "31"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Information Disclosure"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Unlikely"
        }
      ],
      "title": "Windows 11 Telnet Client Information Disclosure Vulnerability"
    }
  ]
}