# KB5021243: December 2022 cumulative update for Windows 10 1507

KB5021243, released December 13, 2022, fixes 22 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb5021243
- Platform: Microsoft
- Released: Dec 13, 2022
- Priority: Urgent (Closes CVE-2022-41076, exploitation more likely)
- CVEs: 22, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5021243

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft .NET Framework 3.5 AND 4.6/4.6.2 on Windows 10 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-and-4.6-4.6.2-on-windows-10-for-32-bit-systems.md) |  | 10240.19624 |
| [Microsoft .NET Framework 3.5 AND 4.6/4.6.2 on Windows 10 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/microsoft-.net-framework-3.5-and-4.6-4.6.2-on-windows-10-for-x64-based-systems.md) |  | 10240.19624 |
| [Windows 10 for 32-bit Systems](https://patchblox.com/security/data/product/microsoft/windows-10-for-32-bit-systems.md) |  | 10240.19624 |
| [Windows 10 for x64-based Systems](https://patchblox.com/security/data/product/microsoft/windows-10-for-x64-based-systems.md) |  | 10240.19624 |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-41076](https://patchblox.com/security/data/cve/CVE-2022-41076.md) | Urgent | Windows PowerShell | 8.5 | 0.6078 | More likely |
| [CVE-2022-44683](https://patchblox.com/security/data/cve/CVE-2022-44683.md) | Urgent | Windows Kernel | 7.8 | 0.0820 | More likely |
| [CVE-2022-44673](https://patchblox.com/security/data/cve/CVE-2022-44673.md) | Urgent | Client Server Run-time Subsystem (CSRSS) | 7.0 | 0.0525 | More likely |
| [CVE-2022-44675](https://patchblox.com/security/data/cve/CVE-2022-44675.md) | Urgent | Microsoft Bluetooth Driver | 7.8 | 0.0498 | More likely |
| [CVE-2022-44670](https://patchblox.com/security/data/cve/CVE-2022-44670.md) | Urgent | Windows Secure Socket Tunneling Protocol (SSTP) | 8.1 | 0.0122 |  |
| [CVE-2022-44676](https://patchblox.com/security/data/cve/CVE-2022-44676.md) | Urgent | Windows Secure Socket Tunneling Protocol (SSTP) | 8.1 | 0.0116 |  |
| [CVE-2022-41121](https://patchblox.com/security/data/cve/CVE-2022-41121.md) | Urgent | Microsoft Graphics Component | 7.8 | 0.0112 | More likely |
| [CVE-2022-44666](https://patchblox.com/security/data/cve/CVE-2022-44666.md) | High | Windows Contacts | 7.8 | 0.4137 |  |
| [CVE-2022-41089](https://patchblox.com/security/data/cve/CVE-2022-41089.md) | High | .NET Framework | 7.8 | 0.0119 |  |
| [CVE-2022-44667](https://patchblox.com/security/data/cve/CVE-2022-44667.md) | High | Microsoft Windows Codecs Library | 7.8 | 0.0081 |  |
| [CVE-2022-44668](https://patchblox.com/security/data/cve/CVE-2022-44668.md) | High | Microsoft Windows Codecs Library | 7.8 | 0.0081 |  |
| [CVE-2022-44678](https://patchblox.com/security/data/cve/CVE-2022-44678.md) | High | Windows HTTP Print Provider | 7.8 | 0.0056 |  |
| [CVE-2022-44681](https://patchblox.com/security/data/cve/CVE-2022-44681.md) | High | Windows Print Spooler Components | 7.8 | 0.0055 |  |
| [CVE-2022-41077](https://patchblox.com/security/data/cve/CVE-2022-41077.md) | High | Windows Fax Compose Form | 7.8 | 0.0055 |  |
| [CVE-2022-44697](https://patchblox.com/security/data/cve/CVE-2022-44697.md) | High | Microsoft Graphics Component | 7.8 | 0.0055 |  |
| [CVE-2022-41094](https://patchblox.com/security/data/cve/CVE-2022-41094.md) | High | Role: Windows Hyper-V | 7.8 | 0.0053 |  |
| [CVE-2022-44680](https://patchblox.com/security/data/cve/CVE-2022-44680.md) | High | Microsoft Graphics Component | 7.8 | 0.0052 |  |
| [CVE-2022-30130](https://patchblox.com/security/data/cve/CVE-2022-30130.md) | Routine | .NET Framework | 3.3 | 0.0315 |  |
| [CVE-2022-44707](https://patchblox.com/security/data/cve/CVE-2022-44707.md) | Routine | Windows Kernel | 6.5 | 0.0271 |  |
| [CVE-2022-44682](https://patchblox.com/security/data/cve/CVE-2022-44682.md) | Routine | Role: Windows Hyper-V | 6.8 | 0.0075 |  |
| [CVE-2022-44679](https://patchblox.com/security/data/cve/CVE-2022-44679.md) | Routine | Microsoft Graphics Component | 6.5 | 0.0056 |  |
| [CVE-2022-41074](https://patchblox.com/security/data/cve/CVE-2022-41074.md) | Routine | Microsoft Graphics Component | 5.5 | 0.0056 |  |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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