# KB5011534: March 2022 security update

KB5011534, released March 8, 2022, fixes 12 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/kb5011534
- Platform: Microsoft
- Released: Mar 8, 2022
- Priority: Urgent (Closes CVE-2022-24502, exploitation more likely)
- CVEs: 12, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5011534

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Windows Server 2008 for 32-bit Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/windows-server-2008-for-32-bit-systems-service-pack-2.md) |  |  |
| [Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2008-for-32-bit-systems-service-pack-2-server-core-installation.md) |  |  |
| [Windows Server 2008 for x64-based Systems Service Pack 2](https://patchblox.com/security/data/product/microsoft/windows-server-2008-for-x64-based-systems-service-pack-2.md) |  |  |
| [Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)](https://patchblox.com/security/data/product/microsoft/windows-server-2008-for-x64-based-systems-service-pack-2-server-core-installation.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-24502](https://patchblox.com/security/data/cve/CVE-2022-24502.md) | Urgent | Windows HTML Platform | 4.3 | 0.3306 | More likely |
| [CVE-2022-21990](https://patchblox.com/security/data/cve/CVE-2022-21990.md) | Urgent | Windows Remote Desktop | 8.8 | 0.1884 | Disclosed |
| [CVE-2022-23299](https://patchblox.com/security/data/cve/CVE-2022-23299.md) | Urgent | Windows PDEV | 7.8 | 0.0762 | More likely |
| [CVE-2022-23293](https://patchblox.com/security/data/cve/CVE-2022-23293.md) | High | Windows Fast FAT Driver | 7.8 | 0.0067 |  |
| [CVE-2022-23296](https://patchblox.com/security/data/cve/CVE-2022-23296.md) | High | Windows Installer | 7.8 | 0.0067 |  |
| [CVE-2022-24459](https://patchblox.com/security/data/cve/CVE-2022-24459.md) | High | Windows Fax and Scan Service | 7.8 | 0.0064 | Disclosed |
| [CVE-2022-23290](https://patchblox.com/security/data/cve/CVE-2022-23290.md) | High | Windows COM | 7.8 | 0.0063 |  |
| [CVE-2022-23298](https://patchblox.com/security/data/cve/CVE-2022-23298.md) | High | Windows Kernel | 7.0 | 0.0058 |  |
| [CVE-2021-36927](https://patchblox.com/security/data/cve/CVE-2021-36927.md) | High | Windows Media | 7.8 | 0.0053 |  |
| [CVE-2022-23283](https://patchblox.com/security/data/cve/CVE-2022-23283.md) | High | Windows ALPC | 7.0 | 0.0039 |  |
| [CVE-2022-23281](https://patchblox.com/security/data/cve/CVE-2022-23281.md) | Routine | Windows Common Log File System Driver | 5.5 | 0.0113 |  |
| [CVE-2022-23297](https://patchblox.com/security/data/cve/CVE-2022-23297.md) | Routine | Windows Kernel | 5.5 | 0.0079 |  |

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Data as of 2026-11-07T06:34:28Z 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