# KB4484471: August 2020 security update

KB4484471, released August 11, 2020, fixes 3 CVEs in Microsoft SharePoint Server 2019. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb4484471
- Platform: Microsoft
- Released: Aug 11, 2020
- Priority: High (Closes CVE-2020-1583, high severity)
- CVEs: 3, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4484471

## 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-2020-1583](https://patchblox.com/security/data/cve/CVE-2020-1583.md) | High | Microsoft Office | n/a | 0.0491 |  |
| [CVE-2020-1502](https://patchblox.com/security/data/cve/CVE-2020-1502.md) | High | Microsoft Office | n/a | 0.0464 |  |
| [CVE-2020-1503](https://patchblox.com/security/data/cve/CVE-2020-1503.md) | High | Microsoft Office | n/a | 0.0455 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo