{
  "product": "Windows 11 version 21H2 for ARM64-based Systems",
  "url": "https://patchblox.com/security/product/microsoft/windows-11-version-21h2-for-arm64-based-systems",
  "summary": "Patch Radar has 40 security fixes for Windows 11 version 21H2 for ARM64-based Systems, closing 1,560 CVEs, 69 of which are being exploited. The newest security fix is KB5055518, released April 8, 2025. This product is no longer supported.",
  "platform": "microsoft",
  "vendor": "Microsoft",
  "supported": false,
  "fixCount": 40,
  "cveCount": 1560,
  "exploitedCveCount": 69,
  "unfixedCveCount": 0,
  "fixes": [
    {
      "fix": "KB5055518",
      "url": "https://patchblox.com/security/fix/microsoft/kb5055518",
      "released": "2025-04-08T00:00:00Z",
      "fixedVersion": "",
      "priority": "Patch now",
      "cveCount": 61,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5046398",
      "url": "https://patchblox.com/security/fix/microsoft/kb5046398",
      "released": "2024-10-08T12:00:00Z",
      "fixedVersion": "",
      "priority": "Routine",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5044280",
      "url": "https://patchblox.com/security/fix/microsoft/kb5044280",
      "released": "2024-10-08T00:00:00Z",
      "fixedVersion": "22000.3260",
      "priority": "Patch now",
      "cveCount": 63,
      "exploitedCveCount": 2
    },
    {
      "fix": "KB5043067",
      "url": "https://patchblox.com/security/fix/microsoft/kb5043067",
      "released": "2024-09-10T00:00:00Z",
      "fixedVersion": "22000.3197",
      "priority": "Patch now",
      "cveCount": 30,
      "exploitedCveCount": 3
    },
    {
      "fix": "KB5041592",
      "url": "https://patchblox.com/security/fix/microsoft/kb5041592",
      "released": "2024-08-13T00:00:00Z",
      "fixedVersion": "22000.3147",
      "priority": "Patch now",
      "cveCount": 43,
      "exploitedCveCount": 4
    },
    {
      "fix": "KB5040431",
      "url": "https://patchblox.com/security/fix/microsoft/kb5040431",
      "released": "2024-07-09T00:00:00Z",
      "fixedVersion": "22000.3079",
      "priority": "Patch now",
      "cveCount": 79,
      "exploitedCveCount": 3
    },
    {
      "fix": "KB5039213",
      "url": "https://patchblox.com/security/fix/microsoft/kb5039213",
      "released": "2024-06-11T00:00:00Z",
      "fixedVersion": "22000.3019",
      "priority": "Patch now",
      "cveCount": 28,
      "exploitedCveCount": 3
    },
    {
      "fix": "KB5037770",
      "url": "https://patchblox.com/security/fix/microsoft/kb5037770",
      "released": "2024-05-14T00:00:00Z",
      "fixedVersion": "22000.2960",
      "priority": "Patch now",
      "cveCount": 41,
      "exploitedCveCount": 2
    },
    {
      "fix": "KB5036894",
      "url": "https://patchblox.com/security/fix/microsoft/kb5036894",
      "released": "2024-04-09T00:00:00Z",
      "fixedVersion": "22000.2899",
      "priority": "Patch now",
      "cveCount": 67,
      "exploitedCveCount": 2
    },
    {
      "fix": "KB5035854",
      "url": "https://patchblox.com/security/fix/microsoft/kb5035854",
      "released": "2024-03-12T00:00:00Z",
      "fixedVersion": "22000.2836",
      "priority": "Patch now",
      "cveCount": 35,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5034766",
      "url": "https://patchblox.com/security/fix/microsoft/kb5034766",
      "released": "2024-02-13T00:00:00Z",
      "fixedVersion": "22000.2777",
      "priority": "Patch now",
      "cveCount": 40,
      "exploitedCveCount": 3
    },
    {
      "fix": "KB5034121",
      "url": "https://patchblox.com/security/fix/microsoft/kb5034121",
      "released": "2024-01-09T00:00:00Z",
      "fixedVersion": "22000.2713",
      "priority": "Urgent",
      "cveCount": 34,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5033369",
      "url": "https://patchblox.com/security/fix/microsoft/kb5033369",
      "released": "2023-12-12T00:00:00Z",
      "fixedVersion": "22000.2652",
      "priority": "Urgent",
      "cveCount": 16,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5032192",
      "url": "https://patchblox.com/security/fix/microsoft/kb5032192",
      "released": "2023-11-14T00:00:00Z",
      "fixedVersion": "22000.2600",
      "priority": "Patch now",
      "cveCount": 32,
      "exploitedCveCount": 4
    },
    {
      "fix": "KB5031358",
      "url": "https://patchblox.com/security/fix/microsoft/kb5031358",
      "released": "2023-10-10T00:00:00Z",
      "fixedVersion": "22000.2538",
      "priority": "Patch now",
      "cveCount": 75,
      "exploitedCveCount": 3
    },
    {
      "fix": "KB5030217",
      "url": "https://patchblox.com/security/fix/microsoft/kb5030217",
      "released": "2023-09-12T00:00:00Z",
      "fixedVersion": "22000.2416",
      "priority": "Patch now",
      "cveCount": 18,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5029253",
      "url": "https://patchblox.com/security/fix/microsoft/kb5029253",
      "released": "2023-08-08T00:00:00Z",
      "fixedVersion": "22000.2295",
      "priority": "Patch now",
      "cveCount": 34,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5028182",
      "url": "https://patchblox.com/security/fix/microsoft/kb5028182",
      "released": "2023-07-11T00:00:00Z",
      "fixedVersion": "22000.2176",
      "priority": "Patch now",
      "cveCount": 83,
      "exploitedCveCount": 3
    },
    {
      "fix": "KB5027223",
      "url": "https://patchblox.com/security/fix/microsoft/kb5027223",
      "released": "2023-06-13T00:00:00Z",
      "fixedVersion": "22000.2057",
      "priority": "Patch now",
      "cveCount": 29,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5026368",
      "url": "https://patchblox.com/security/fix/microsoft/kb5026368",
      "released": "2023-05-09T00:00:00Z",
      "fixedVersion": "22000.1936",
      "priority": "Urgent",
      "cveCount": 21,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5025224",
      "url": "https://patchblox.com/security/fix/microsoft/kb5025224",
      "released": "2023-04-11T00:00:00Z",
      "fixedVersion": "22000.1817",
      "priority": "Patch now",
      "cveCount": 59,
      "exploitedCveCount": 3
    },
    {
      "fix": "KB5023698",
      "url": "https://patchblox.com/security/fix/microsoft/kb5023698",
      "released": "2023-03-14T00:00:00Z",
      "fixedVersion": "22000.1696",
      "priority": "Patch now",
      "cveCount": 54,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5022836",
      "url": "https://patchblox.com/security/fix/microsoft/kb5022836",
      "released": "2023-02-14T00:00:00Z",
      "fixedVersion": "22000.1574",
      "priority": "Patch now",
      "cveCount": 33,
      "exploitedCveCount": 2
    },
    {
      "fix": "KB5022287",
      "url": "https://patchblox.com/security/fix/microsoft/kb5022287",
      "released": "2023-01-10T00:00:00Z",
      "fixedVersion": "22000.1455",
      "priority": "Patch now",
      "cveCount": 66,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5021234",
      "url": "https://patchblox.com/security/fix/microsoft/kb5021234",
      "released": "2022-12-13T00:00:00Z",
      "fixedVersion": "22000.1335",
      "priority": "Patch now",
      "cveCount": 25,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5019961",
      "url": "https://patchblox.com/security/fix/microsoft/kb5019961",
      "released": "2022-11-08T00:00:00Z",
      "fixedVersion": "22000.1219",
      "priority": "Patch now",
      "cveCount": 37,
      "exploitedCveCount": 5
    },
    {
      "fix": "KB5018418",
      "url": "https://patchblox.com/security/fix/microsoft/kb5018418",
      "released": "2022-10-11T00:00:00Z",
      "fixedVersion": "22000.1098",
      "priority": "Patch now",
      "cveCount": 65,
      "exploitedCveCount": 2
    },
    {
      "fix": "KB5017328",
      "url": "https://patchblox.com/security/fix/microsoft/kb5017328",
      "released": "2022-09-13T00:00:00Z",
      "fixedVersion": "22000.978",
      "priority": "Patch now",
      "cveCount": 40,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5012170",
      "url": "https://patchblox.com/security/fix/microsoft/kb5012170",
      "released": "2022-08-09T12:00:00Z",
      "fixedVersion": "",
      "priority": "Urgent",
      "cveCount": 4,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5016629",
      "url": "https://patchblox.com/security/fix/microsoft/kb5016629",
      "released": "2022-08-09T00:00:00Z",
      "fixedVersion": "22000.856",
      "priority": "Patch now",
      "cveCount": 57,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5015814",
      "url": "https://patchblox.com/security/fix/microsoft/kb5015814",
      "released": "2022-07-12T00:00:00Z",
      "fixedVersion": "22000.795",
      "priority": "Patch now",
      "cveCount": 40,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5014697",
      "url": "https://patchblox.com/security/fix/microsoft/kb5014697",
      "released": "2022-06-14T00:00:00Z",
      "fixedVersion": "22000.739",
      "priority": "Patch now",
      "cveCount": 28,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5013943",
      "url": "https://patchblox.com/security/fix/microsoft/kb5013943",
      "released": "2022-05-10T00:00:00Z",
      "fixedVersion": "22000.675",
      "priority": "Patch now",
      "cveCount": 45,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5012592",
      "url": "https://patchblox.com/security/fix/microsoft/kb5012592",
      "released": "2022-04-12T00:00:00Z",
      "fixedVersion": "22000.613",
      "priority": "Patch now",
      "cveCount": 68,
      "exploitedCveCount": 2
    },
    {
      "fix": "KB5011493",
      "url": "https://patchblox.com/security/fix/microsoft/kb5011493",
      "released": "2022-03-08T00:00:00Z",
      "fixedVersion": "22000.556",
      "priority": "Urgent",
      "cveCount": 28,
      "exploitedCveCount": 0
    },
    {
      "fix": "KB5010386",
      "url": "https://patchblox.com/security/fix/microsoft/kb5010386",
      "released": "2022-02-08T00:00:00Z",
      "fixedVersion": "22000.493",
      "priority": "Patch now",
      "cveCount": 22,
      "exploitedCveCount": 3
    },
    {
      "fix": "KB5009566",
      "url": "https://patchblox.com/security/fix/microsoft/kb5009566",
      "released": "2022-01-11T00:00:00Z",
      "fixedVersion": "22000.434",
      "priority": "Patch now",
      "cveCount": 65,
      "exploitedCveCount": 2
    },
    {
      "fix": "KB5008215",
      "url": "https://patchblox.com/security/fix/microsoft/kb5008215",
      "released": "2021-12-14T00:00:00Z",
      "fixedVersion": "22000.376",
      "priority": "Patch now",
      "cveCount": 31,
      "exploitedCveCount": 1
    },
    {
      "fix": "KB5007215",
      "url": "https://patchblox.com/security/fix/microsoft/kb5007215",
      "released": "2021-11-09T00:00:00Z",
      "fixedVersion": "22000.318",
      "priority": "Patch now",
      "cveCount": 23,
      "exploitedCveCount": 2
    },
    {
      "fix": "KB5006674",
      "url": "https://patchblox.com/security/fix/microsoft/kb5006674",
      "released": "2021-10-12T00:00:00Z",
      "fixedVersion": "22000.258",
      "priority": "Patch now",
      "cveCount": 41,
      "exploitedCveCount": 3
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-12T13:55:20Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}