# KB5023052: February 2024 security update

KB5023052, released February 13, 2024, fixes 1 CVE across 3 products. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb5023052
- Platform: Microsoft
- Released: Feb 13, 2024
- Priority: Routine (Closes CVE-2024-21397)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5023052

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Azure File Sync v14.0](https://patchblox.com/security/data/product/microsoft/azure-file-sync-v14.0.md) |  |  |
| [Azure File Sync v15.0](https://patchblox.com/security/data/product/microsoft/azure-file-sync-v15.0.md) |  |  |
| [Azure File Sync v16.0](https://patchblox.com/security/data/product/microsoft/azure-file-sync-v16.0.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2024-21397](https://patchblox.com/security/data/cve/CVE-2024-21397.md) | Routine | Azure File Sync | 5.3 | 0.0050 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo