# KB4486676: October 2020 security update

KB4486676, released October 13, 2020, fixes 10 CVEs in Microsoft SharePoint Server 2019. 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/kb4486676
- Platform: Microsoft
- Released: Oct 13, 2020
- Priority: Urgent (Closes CVE-2020-16952, rated Critical)
- CVEs: 10, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4486676

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft SharePoint Server 2019](https://patchblox.com/security/data/product/microsoft/microsoft-sharepoint-server-2019.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-16952](https://patchblox.com/security/data/cve/CVE-2020-16952.md) | Urgent | Microsoft Office SharePoint | 8.6 | 0.7110 |  |
| [CVE-2020-16951](https://patchblox.com/security/data/cve/CVE-2020-16951.md) | Urgent | Microsoft Office SharePoint | 8.6 | 0.0143 |  |
| [CVE-2020-16944](https://patchblox.com/security/data/cve/CVE-2020-16944.md) | High | Microsoft Office SharePoint | 8.7 | 0.0180 |  |
| [CVE-2020-16945](https://patchblox.com/security/data/cve/CVE-2020-16945.md) | High | Microsoft Office SharePoint | 8.7 | 0.0167 |  |
| [CVE-2020-16946](https://patchblox.com/security/data/cve/CVE-2020-16946.md) | High | Microsoft Office SharePoint | 8.7 | 0.0161 |  |
| [CVE-2020-16950](https://patchblox.com/security/data/cve/CVE-2020-16950.md) | Routine | Microsoft Office SharePoint | 5.0 | 0.0417 |  |
| [CVE-2020-16948](https://patchblox.com/security/data/cve/CVE-2020-16948.md) | Routine | Microsoft Office SharePoint | 6.5 | 0.0384 |  |
| [CVE-2020-16953](https://patchblox.com/security/data/cve/CVE-2020-16953.md) | Routine | Microsoft Office SharePoint | 6.5 | 0.0384 |  |
| [CVE-2020-16941](https://patchblox.com/security/data/cve/CVE-2020-16941.md) | Routine | Microsoft Office SharePoint | 4.1 | 0.0090 |  |
| [CVE-2020-16942](https://patchblox.com/security/data/cve/CVE-2020-16942.md) | Routine | Microsoft Office SharePoint | 4.1 | 0.0088 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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