# KB5002521: November 2023 security update

KB5002521, released November 14, 2023, fixes 1 CVE across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/microsoft/kb5002521
- Platform: Microsoft
- Released: Nov 14, 2023
- Priority: Urgent (Closes CVE-2023-36413, exploitation more likely)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5002521

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft Office 2016 (32-bit edition)](https://patchblox.com/security/data/product/microsoft/microsoft-office-2016-32-bit-edition.md) |  |  |
| [Microsoft Office 2016 (64-bit edition)](https://patchblox.com/security/data/product/microsoft/microsoft-office-2016-64-bit-edition.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-36413](https://patchblox.com/security/data/cve/CVE-2023-36413.md) | Urgent | Microsoft Office | 6.5 | 0.2997 | Disclosed |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo