# CVE-2019-1074: Microsoft Windows Elevation of Privilege Vulnerability

CVE-2019-1074 is fixed in 16 products on 1 platform, first by KB4507455, released July 9, 2019. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2019-1074
- Priority: Urgent
- CVSS: 5.3 (Important)
- EPSS: 0.0162
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation More Likely
- Published: Jul 9, 2019
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1074

## Description

<p>An elevation of privilege vulnerability exists in Microsoft Windows where certain folders, with local service privilege, are vulnerable to symbolic link attack.</p> <p>An attacker who successfully exploited this vulnerability could potentially access unauthorized information.</p> <p>The update addresses this vulnerability by not allowing symbolic links in these scenarios.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.1268 | [KB4507455](https://patchblox.com/security/data/fix/microsoft/kb4507455.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1709 for ARM64-based Systems | 16299.1268 | [KB4507455](https://patchblox.com/security/data/fix/microsoft/kb4507455.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.1268 | [KB4507455](https://patchblox.com/security/data/fix/microsoft/kb4507455.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1803 for 32-bit Systems | 17134.885 | [KB4507435](https://patchblox.com/security/data/fix/microsoft/kb4507435.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1803 for ARM64-based Systems | 17134.885 | [KB4507435](https://patchblox.com/security/data/fix/microsoft/kb4507435.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1803 for x64-based Systems | 17134.885 | [KB4507435](https://patchblox.com/security/data/fix/microsoft/kb4507435.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.615 | [KB4507469](https://patchblox.com/security/data/fix/microsoft/kb4507469.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1809 for ARM64-based Systems | 17763.615 | [KB4507469](https://patchblox.com/security/data/fix/microsoft/kb4507469.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.615 | [KB4507469](https://patchblox.com/security/data/fix/microsoft/kb4507469.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | 18362.239 | [KB4507453](https://patchblox.com/security/data/fix/microsoft/kb4507453.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | 18362.239 | [KB4507453](https://patchblox.com/security/data/fix/microsoft/kb4507453.md) | Jul 9, 2019 |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | 18362.239 | [KB4507453](https://patchblox.com/security/data/fix/microsoft/kb4507453.md) | Jul 9, 2019 |
| Microsoft | Windows Server 2019 | 17763.615 | [KB4507469](https://patchblox.com/security/data/fix/microsoft/kb4507469.md) | Jul 9, 2019 |
| Microsoft | Windows Server 2019 (Server Core installation) | 17763.615 | [KB4507469](https://patchblox.com/security/data/fix/microsoft/kb4507469.md) | Jul 9, 2019 |
| Microsoft | Windows Server, version 1803  (Server Core Installation) | 17134.885 | [KB4507435](https://patchblox.com/security/data/fix/microsoft/kb4507435.md) | Jul 9, 2019 |
| Microsoft | Windows Server, version 1903 (Server Core installation) | 18362.239 | [KB4507453](https://patchblox.com/security/data/fix/microsoft/kb4507453.md) | Jul 9, 2019 |

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Data as of 2026-11-07T18:46:35Z 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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