# CVE-2023-21733: Windows Bind Filter Driver Elevation of Privilege Vulnerability

CVE-2023-21733 is fixed in 14 products on 1 platform, first by KB5022282, released January 10, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-21733
- Priority: High
- CVSS: 7.0 (Important)
- EPSS: 0.0030
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Jan 10, 2023
- Weakness: Heap-based Buffer Overflow
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21733

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 20H2 for 32-bit Systems |  | [KB5022282](https://patchblox.com/security/data/fix/microsoft/kb5022282.md) | Jan 10, 2023 |
| Microsoft | Windows 10 Version 20H2 for ARM64-based Systems |  | [KB5022282](https://patchblox.com/security/data/fix/microsoft/kb5022282.md) | Jan 10, 2023 |
| Microsoft | Windows 10 Version 21H2 for 32-bit Systems |  | [KB5022282](https://patchblox.com/security/data/fix/microsoft/kb5022282.md) | Jan 10, 2023 |
| Microsoft | Windows 10 Version 21H2 for ARM64-based Systems |  | [KB5022282](https://patchblox.com/security/data/fix/microsoft/kb5022282.md) | Jan 10, 2023 |
| Microsoft | Windows 10 Version 21H2 for x64-based Systems |  | [KB5022282](https://patchblox.com/security/data/fix/microsoft/kb5022282.md) | Jan 10, 2023 |
| Microsoft | Windows 10 Version 22H2 for 32-bit Systems |  | [KB5022282](https://patchblox.com/security/data/fix/microsoft/kb5022282.md) | Jan 10, 2023 |
| Microsoft | Windows 10 Version 22H2 for ARM64-based Systems |  | [KB5022282](https://patchblox.com/security/data/fix/microsoft/kb5022282.md) | Jan 10, 2023 |
| Microsoft | Windows 10 Version 22H2 for x64-based Systems |  | [KB5022282](https://patchblox.com/security/data/fix/microsoft/kb5022282.md) | Jan 10, 2023 |
| Microsoft | Windows 11 Version 22H2 for ARM64-based Systems | 22621.1105 | [KB5022303](https://patchblox.com/security/data/fix/microsoft/kb5022303.md) | Jan 10, 2023 |
| Microsoft | Windows 11 Version 22H2 for x64-based Systems | 22621.1105 | [KB5022303](https://patchblox.com/security/data/fix/microsoft/kb5022303.md) | Jan 10, 2023 |
| Microsoft | Windows 11 version 21H2 for ARM64-based Systems | 22000.1455 | [KB5022287](https://patchblox.com/security/data/fix/microsoft/kb5022287.md) | Jan 10, 2023 |
| Microsoft | Windows 11 version 21H2 for x64-based Systems | 22000.1455 | [KB5022287](https://patchblox.com/security/data/fix/microsoft/kb5022287.md) | Jan 10, 2023 |
| Microsoft | Windows Server 2022 | 20348.1487 | [KB5022291](https://patchblox.com/security/data/fix/microsoft/kb5022291.md) | Jan 10, 2023 |
| Microsoft | Windows Server 2022 (Server Core installation) | 20348.1487 | [KB5022291](https://patchblox.com/security/data/fix/microsoft/kb5022291.md) | Jan 10, 2023 |

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Data as of 2026-11-08T06:59:42Z 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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