# KB5002797: October 2025 security update

KB5002797, released October 14, 2025, fixes 8 CVEs in Office Online Server. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/microsoft/kb5002797
- Platform: Microsoft
- Released: Oct 14, 2025
- Priority: Urgent (Closes CVE-2025-59236, rated Critical)
- CVEs: 8, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5002797

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Office Online Server](https://patchblox.com/security/data/product/microsoft/office-online-server.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-59236](https://patchblox.com/security/data/cve/CVE-2025-59236.md) | Urgent | Microsoft Office Excel | 8.4 | 0.0042 |  |
| [CVE-2025-59235](https://patchblox.com/security/data/cve/CVE-2025-59235.md) | High | Microsoft Office Excel | 7.1 | 0.0065 |  |
| [CVE-2025-59231](https://patchblox.com/security/data/cve/CVE-2025-59231.md) | High | Microsoft Office Excel | 7.8 | 0.0053 |  |
| [CVE-2025-59233](https://patchblox.com/security/data/cve/CVE-2025-59233.md) | High | Microsoft Office Excel | 7.8 | 0.0053 |  |
| [CVE-2025-59232](https://patchblox.com/security/data/cve/CVE-2025-59232.md) | High | Microsoft Office Excel | 7.1 | 0.0048 |  |
| [CVE-2025-59223](https://patchblox.com/security/data/cve/CVE-2025-59223.md) | High | Microsoft Office Excel | 7.8 | 0.0038 |  |
| [CVE-2025-59224](https://patchblox.com/security/data/cve/CVE-2025-59224.md) | High | Microsoft Office Excel | 7.8 | 0.0038 |  |
| [CVE-2025-59225](https://patchblox.com/security/data/cve/CVE-2025-59225.md) | High | Microsoft Office Excel | 7.8 | 0.0038 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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