# CVE-2019-1442: Microsoft Office Security Feature Bypass Vulnerability

CVE-2019-1442 is fixed in Microsoft SharePoint Server 2019 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-2019-1442
- Priority: High
- CVSS: n/a (Important)
- EPSS: 0.0216
- 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-2019-1442

## Description

<p>A security feature bypass vulnerability exists when Microsoft Office does not validate URLs.</p> <p>An attacker could send a victim a specially crafted file, which could trick the victim into entering credentials. An attacker who successfully exploited this vulnerability could perform a phishing attack.</p> <p>The update addresses the vulnerability by ensuring Microsoft Office properly validates URLs.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Server 2019 |  | [KB4484142](https://patchblox.com/security/data/fix/microsoft/kb4484142.md) | Nov 12, 2019 |
| Microsoft | Microsoft SharePoint Server 2019 |  | [KB4484149](https://patchblox.com/security/data/fix/microsoft/kb4484149.md) | Nov 12, 2019 |

---

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.