{
  "product": "Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
  "url": "https://patchblox.com/security/product/microsoft/microsoft-.net-framework-4.8-on-windows-server-2008-r2-for-x64-based-systems-service-pack-1-server-core-installation",
  "summary": "Patch Radar has 42 security fixes for Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), closing 43 CVEs, 3 of which are being exploited. The newest security fix is KB5066739, released October 14, 2025. This product is no longer supported.",
  "platform": "microsoft",
  "vendor": "Microsoft",
  "supported": false,
  "fixCount": 42,
  "cveCount": 43,
  "exploitedCveCount": 3,
  "unfixedCveCount": 0,
  "fixes": [
    {
      "fix": "KB5066739",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066739",
      "released": "2025-10-14T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5050180",
      "url": "https://patchblox.com/security/fix/microsoft/kb5050180",
      "released": "2025-01-14T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5050183",
      "url": "https://patchblox.com/security/fix/microsoft/kb5050183",
      "released": "2025-01-14T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5044085",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044085",
      "released": "2024-10-23T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5044095",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044095",
      "released": "2024-10-23T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5041021",
      "url": "https://patchblox.com/security/fix/microsoft/kb5041021",
      "released": "2024-07-09T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5041026",
      "url": "https://patchblox.com/security/fix/microsoft/kb5041026",
      "released": "2024-07-09T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5034269",
      "url": "https://patchblox.com/security/fix/microsoft/kb5034269",
      "released": "2024-05-08T12:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 4,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5034277",
      "url": "https://patchblox.com/security/fix/microsoft/kb5034277",
      "released": "2024-05-08T12:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 3,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5037127",
      "url": "https://patchblox.com/security/fix/microsoft/kb5037127",
      "released": "2024-04-09T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5030182",
      "url": "https://patchblox.com/security/fix/microsoft/kb5030182",
      "released": "2023-12-12T14:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 5,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5032185",
      "url": "https://patchblox.com/security/fix/microsoft/kb5032185",
      "released": "2023-11-14T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5032341",
      "url": "https://patchblox.com/security/fix/microsoft/kb5032341",
      "released": "2023-11-14T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5029566",
      "url": "https://patchblox.com/security/fix/microsoft/kb5029566",
      "released": "2023-08-08T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5029651",
      "url": "https://patchblox.com/security/fix/microsoft/kb5029651",
      "released": "2023-08-08T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5027531",
      "url": "https://patchblox.com/security/fix/microsoft/kb5027531",
      "released": "2023-06-13T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 6,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5027540",
      "url": "https://patchblox.com/security/fix/microsoft/kb5027540",
      "released": "2023-06-13T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 6,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5022731",
      "url": "https://patchblox.com/security/fix/microsoft/kb5022731",
      "released": "2023-02-14T14:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5022783",
      "url": "https://patchblox.com/security/fix/microsoft/kb5022783",
      "released": "2023-02-14T14:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5021079",
      "url": "https://patchblox.com/security/fix/microsoft/kb5021079",
      "released": "2022-12-13T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5021091",
      "url": "https://patchblox.com/security/fix/microsoft/kb5021091",
      "released": "2022-12-13T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5020678",
      "url": "https://patchblox.com/security/fix/microsoft/kb5020678",
      "released": "2022-11-08T14:00:00Z",
      "fixedVersion": "",
      "priority": "Routine",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5020688",
      "url": "https://patchblox.com/security/fix/microsoft/kb5020688",
      "released": "2022-11-08T14:00:00Z",
      "fixedVersion": "",
      "priority": "Routine",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5012324",
      "url": "https://patchblox.com/security/fix/microsoft/kb5012324",
      "released": "2022-04-19T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5012329",
      "url": "https://patchblox.com/security/fix/microsoft/kb5012329",
      "released": "2022-04-19T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5009711",
      "url": "https://patchblox.com/security/fix/microsoft/kb5009711",
      "released": "2022-01-11T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5009719",
      "url": "https://patchblox.com/security/fix/microsoft/kb5009719",
      "released": "2022-01-11T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4602958",
      "url": "https://patchblox.com/security/fix/microsoft/kb4602958",
      "released": "2021-02-09T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4603002",
      "url": "https://patchblox.com/security/fix/microsoft/kb4603002",
      "released": "2021-02-09T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4566466",
      "url": "https://patchblox.com/security/fix/microsoft/kb4566466",
      "released": "2020-10-13T12:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 1,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB4579977",
      "url": "https://patchblox.com/security/fix/microsoft/kb4579977",
      "released": "2020-10-13T07:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 2,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB4580467",
      "url": "https://patchblox.com/security/fix/microsoft/kb4580467",
      "released": "2020-10-13T07:00:00Z",
      "fixedVersion": "",
      "priority": "Routine",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4570500",
      "url": "https://patchblox.com/security/fix/microsoft/kb4570500",
      "released": "2020-08-11T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4570506",
      "url": "https://patchblox.com/security/fix/microsoft/kb4570506",
      "released": "2020-08-11T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4556399",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556399",
      "released": "2020-05-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4556403",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556403",
      "released": "2020-05-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4534976",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534976",
      "released": "2020-01-14T08:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 3,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB4535102",
      "url": "https://patchblox.com/security/fix/microsoft/kb4535102",
      "released": "2020-01-14T08:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 3,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB4507411",
      "url": "https://patchblox.com/security/fix/microsoft/kb4507411",
      "released": "2019-07-09T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4507420",
      "url": "https://patchblox.com/security/fix/microsoft/kb4507420",
      "released": "2019-07-09T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4498961",
      "url": "https://patchblox.com/security/fix/microsoft/kb4498961",
      "released": "2019-05-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 4,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4499406",
      "url": "https://patchblox.com/security/fix/microsoft/kb4499406",
      "released": "2019-05-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 4,
      "exploitedCveCount": 0
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-14T20:11:19Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}