# KB4484453: July 2020 security update

KB4484453, released July 14, 2020, fixes 14 CVEs in Microsoft SharePoint Server 2019. One of them is being exploited (CVE-2020-1147); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb4484453
- Platform: Microsoft
- Released: Jul 14, 2020
- Priority: Patch now (Closes CVE-2020-1147, exploited (CISA KEV))
- CVEs: 14, exploited: 1, on CISA KEV: 1
- Vendor advisory: https://support.microsoft.com/help/4484453

## 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-2020-1147](https://patchblox.com/security/data/cve/CVE-2020-1147.md) | Patch now | .NET Framework | 8.8 | 0.9580 | CISA KEV |
| [CVE-2020-1439](https://patchblox.com/security/data/cve/CVE-2020-1439.md) | Urgent | Microsoft Office | n/a | 0.2027 |  |
| [CVE-2020-1025](https://patchblox.com/security/data/cve/CVE-2020-1025.md) | Urgent | Skype for Business | n/a | 0.0585 |  |
| [CVE-2020-1446](https://patchblox.com/security/data/cve/CVE-2020-1446.md) | High | Microsoft Office | n/a | 0.1123 |  |
| [CVE-2020-1447](https://patchblox.com/security/data/cve/CVE-2020-1447.md) | High | Microsoft Office | n/a | 0.1063 |  |
| [CVE-2020-1448](https://patchblox.com/security/data/cve/CVE-2020-1448.md) | High | Microsoft Office | n/a | 0.0996 |  |
| [CVE-2020-1444](https://patchblox.com/security/data/cve/CVE-2020-1444.md) | High | Microsoft Office SharePoint | n/a | 0.0905 |  |
| [CVE-2020-1342](https://patchblox.com/security/data/cve/CVE-2020-1342.md) | High | Microsoft Office SharePoint | n/a | 0.0641 |  |
| [CVE-2020-1445](https://patchblox.com/security/data/cve/CVE-2020-1445.md) | High | Microsoft Office | n/a | 0.0612 |  |
| [CVE-2020-1456](https://patchblox.com/security/data/cve/CVE-2020-1456.md) | High | Microsoft Office SharePoint | n/a | 0.0223 |  |
| [CVE-2020-1443](https://patchblox.com/security/data/cve/CVE-2020-1443.md) | High | Microsoft Office SharePoint | n/a | 0.0165 |  |
| [CVE-2020-1450](https://patchblox.com/security/data/cve/CVE-2020-1450.md) | High | Microsoft Office SharePoint | n/a | 0.0160 |  |
| [CVE-2020-1451](https://patchblox.com/security/data/cve/CVE-2020-1451.md) | High | Microsoft Office SharePoint | n/a | 0.0160 |  |
| [CVE-2020-1454](https://patchblox.com/security/data/cve/CVE-2020-1454.md) | High | Microsoft Office SharePoint | n/a | 0.0157 |  |

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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