{
  "product": "Microsoft .NET Framework 3.5 on Windows Server 2012",
  "url": "https://patchblox.com/security/product/microsoft/microsoft-.net-framework-3.5-on-windows-server-2012",
  "summary": "Patch Radar has 63 security fixes for Microsoft .NET Framework 3.5 on Windows Server 2012, closing 95 CVEs, 4 of which are being exploited. The newest security fix is KB5127660, released October 13, 2026.",
  "platform": "microsoft",
  "vendor": "Microsoft",
  "supported": true,
  "fixCount": 63,
  "cveCount": 95,
  "exploitedCveCount": 4,
  "unfixedCveCount": 0,
  "fixes": [
    {
      "fix": "KB5127660",
      "url": "https://patchblox.com/security/fix/microsoft/kb5127660",
      "released": "2026-10-13T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 17,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5120716",
      "url": "https://patchblox.com/security/fix/microsoft/kb5120716",
      "released": "2026-08-11T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5100984",
      "url": "https://patchblox.com/security/fix/microsoft/kb5100984",
      "released": "2026-07-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 11,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5087048",
      "url": "https://patchblox.com/security/fix/microsoft/kb5087048",
      "released": "2026-05-18T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5082398",
      "url": "https://patchblox.com/security/fix/microsoft/kb5082398",
      "released": "2026-04-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5066740",
      "url": "https://patchblox.com/security/fix/microsoft/kb5066740",
      "released": "2025-10-14T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5044096",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044096",
      "released": "2024-10-23T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5041022",
      "url": "https://patchblox.com/security/fix/microsoft/kb5041022",
      "released": "2024-07-09T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5034278",
      "url": "https://patchblox.com/security/fix/microsoft/kb5034278",
      "released": "2024-05-08T12:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 4,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5030183",
      "url": "https://patchblox.com/security/fix/microsoft/kb5030183",
      "released": "2023-12-12T14:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 5,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5032342",
      "url": "https://patchblox.com/security/fix/microsoft/kb5032342",
      "released": "2023-11-14T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5027532",
      "url": "https://patchblox.com/security/fix/microsoft/kb5027532",
      "released": "2023-06-13T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 6,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5027541",
      "url": "https://patchblox.com/security/fix/microsoft/kb5027541",
      "released": "2023-06-13T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 6,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5022732",
      "url": "https://patchblox.com/security/fix/microsoft/kb5022732",
      "released": "2023-02-14T14:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5022784",
      "url": "https://patchblox.com/security/fix/microsoft/kb5022784",
      "released": "2023-02-14T14:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5021080",
      "url": "https://patchblox.com/security/fix/microsoft/kb5021080",
      "released": "2022-12-13T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5021092",
      "url": "https://patchblox.com/security/fix/microsoft/kb5021092",
      "released": "2022-12-13T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5012325",
      "url": "https://patchblox.com/security/fix/microsoft/kb5012325",
      "released": "2022-04-19T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5012330",
      "url": "https://patchblox.com/security/fix/microsoft/kb5012330",
      "released": "2022-04-19T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5009712",
      "url": "https://patchblox.com/security/fix/microsoft/kb5009712",
      "released": "2022-01-11T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5009720",
      "url": "https://patchblox.com/security/fix/microsoft/kb5009720",
      "released": "2022-01-11T14:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4566467",
      "url": "https://patchblox.com/security/fix/microsoft/kb4566467",
      "released": "2020-10-13T12:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 1,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB4579978",
      "url": "https://patchblox.com/security/fix/microsoft/kb4579978",
      "released": "2020-10-13T07:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 2,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB4580468",
      "url": "https://patchblox.com/security/fix/microsoft/kb4580468",
      "released": "2020-10-13T07:00:00Z",
      "fixedVersion": "",
      "priority": "Routine",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4570501",
      "url": "https://patchblox.com/security/fix/microsoft/kb4570501",
      "released": "2020-08-11T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4570507",
      "url": "https://patchblox.com/security/fix/microsoft/kb4570507",
      "released": "2020-08-11T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4556400",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556400",
      "released": "2020-05-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4556404",
      "url": "https://patchblox.com/security/fix/microsoft/kb4556404",
      "released": "2020-05-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4534977",
      "url": "https://patchblox.com/security/fix/microsoft/kb4534977",
      "released": "2020-01-14T08:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 3,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB4535103",
      "url": "https://patchblox.com/security/fix/microsoft/kb4535103",
      "released": "2020-01-14T08:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 3,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB4514598",
      "url": "https://patchblox.com/security/fix/microsoft/kb4514598",
      "released": "2019-09-10T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4514603",
      "url": "https://patchblox.com/security/fix/microsoft/kb4514603",
      "released": "2019-09-10T12:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4507412",
      "url": "https://patchblox.com/security/fix/microsoft/kb4507412",
      "released": "2019-07-09T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4507421",
      "url": "https://patchblox.com/security/fix/microsoft/kb4507421",
      "released": "2019-07-09T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4498962",
      "url": "https://patchblox.com/security/fix/microsoft/kb4498962",
      "released": "2019-05-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 4,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4499407",
      "url": "https://patchblox.com/security/fix/microsoft/kb4499407",
      "released": "2019-05-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 4,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4487079",
      "url": "https://patchblox.com/security/fix/microsoft/kb4487079",
      "released": "2019-02-12T08:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4487122",
      "url": "https://patchblox.com/security/fix/microsoft/kb4487122",
      "released": "2019-02-12T08:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4481482",
      "url": "https://patchblox.com/security/fix/microsoft/kb4481482",
      "released": "2019-01-08T08:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4481483",
      "url": "https://patchblox.com/security/fix/microsoft/kb4481483",
      "released": "2019-01-08T08:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4470601",
      "url": "https://patchblox.com/security/fix/microsoft/kb4470601",
      "released": "2018-12-11T08:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4470629",
      "url": "https://patchblox.com/security/fix/microsoft/kb4470629",
      "released": "2018-12-11T08:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4457042",
      "url": "https://patchblox.com/security/fix/microsoft/kb4457042",
      "released": "2018-09-12T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4457053",
      "url": "https://patchblox.com/security/fix/microsoft/kb4457053",
      "released": "2018-09-12T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4344150",
      "url": "https://patchblox.com/security/fix/microsoft/kb4344150",
      "released": "2018-08-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4344175",
      "url": "https://patchblox.com/security/fix/microsoft/kb4344175",
      "released": "2018-08-14T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4338421",
      "url": "https://patchblox.com/security/fix/microsoft/kb4338421",
      "released": "2018-07-10T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4338610",
      "url": "https://patchblox.com/security/fix/microsoft/kb4338610",
      "released": "2018-07-10T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4095512",
      "url": "https://patchblox.com/security/fix/microsoft/kb4095512",
      "released": "2018-05-08T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4095872",
      "url": "https://patchblox.com/security/fix/microsoft/kb4095872",
      "released": "2018-05-08T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4054175",
      "url": "https://patchblox.com/security/fix/microsoft/kb4054175",
      "released": "2018-01-18T08:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4054997",
      "url": "https://patchblox.com/security/fix/microsoft/kb4054997",
      "released": "2018-01-18T08:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4040965",
      "url": "https://patchblox.com/security/fix/microsoft/kb4040965",
      "released": "2017-09-12T07:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 1,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB4040979",
      "url": "https://patchblox.com/security/fix/microsoft/kb4040979",
      "released": "2017-09-12T07:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 1,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB4019110",
      "url": "https://patchblox.com/security/fix/microsoft/kb4019110",
      "released": "2017-05-09T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4019113",
      "url": "https://patchblox.com/security/fix/microsoft/kb4019113",
      "released": "2017-05-09T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4014982",
      "url": "https://patchblox.com/security/fix/microsoft/kb4014982",
      "released": "2017-04-11T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB4014986",
      "url": "https://patchblox.com/security/fix/microsoft/kb4014986",
      "released": "2017-04-11T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB3163246",
      "url": "https://patchblox.com/security/fix/microsoft/kb3163246",
      "released": "2016-11-08T08:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB3188731",
      "url": "https://patchblox.com/security/fix/microsoft/kb3188731",
      "released": "2016-10-11T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB3188741",
      "url": "https://patchblox.com/security/fix/microsoft/kb3188741",
      "released": "2016-10-11T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB3142025",
      "url": "https://patchblox.com/security/fix/microsoft/kb3142025",
      "released": "2016-05-10T07:00:00Z",
      "fixedVersion": "",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB3142043",
      "url": "https://patchblox.com/security/fix/microsoft/kb3142043",
      "released": "2016-04-12T07:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 1,
      "exploitedCveCount": 0
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-11T13:47:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}