# CVE-2019-1443: Microsoft SharePoint Information Disclosure Vulnerability

CVE-2019-1443 is fixed in 4 products on 1 platform, first by KB4484142, released November 12, 2019. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2019-1443
- Priority: High
- CVSS: n/a (Important)
- EPSS: 0.0575
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Nov 12, 2019
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1443

## Description

<p>An information disclosure vulnerability exists in Microsoft SharePoint when an attacker uploads a specially crafted file to the SharePoint Server.</p> <p>An authenticated attacker who successfully exploited this vulnerability could potentially leverage SharePoint functionality to obtain SMB hashes.</p> <p>The security update addresses the vulnerability by correcting how SharePoint checks file content.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 |  | [KB4484143](https://patchblox.com/security/data/fix/microsoft/kb4484143.md) | Dec 17, 2019 |
| Microsoft | Microsoft SharePoint Foundation 2010 Service Pack 2 |  | [KB4484165](https://patchblox.com/security/data/fix/microsoft/kb4484165.md) | Dec 17, 2019 |
| Microsoft | Microsoft SharePoint Foundation 2013 Service Pack 1 |  | [KB4484157](https://patchblox.com/security/data/fix/microsoft/kb4484157.md) | Dec 17, 2019 |
| Microsoft | Microsoft SharePoint Server 2019 |  | [KB4484142](https://patchblox.com/security/data/fix/microsoft/kb4484142.md) | Nov 12, 2019 |

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Data as of 2026-11-08T00:53:09Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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