# CVE-2019-1477: Windows Printer Service Elevation of Privilege Vulnerability

CVE-2019-1477 is fixed in 5 products on 1 platform, first by KB4530715, released December 10, 2019. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2019-1477
- Priority: High
- CVSS: 7.8 (Important)
- EPSS: 0.0108
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: N/A
- Published: Dec 10, 2019
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1477

## Description

<p>An elevation of privilege vulnerability exists when the Windows Printer Service improperly validates file paths while loading printer drivers. An authenticated attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges.</p> <p>To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system.</p> <p>The update addresses this vulnerability by correcting how the Windows Printer Service validates file paths.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.914 | [KB4530715](https://patchblox.com/security/data/fix/microsoft/kb4530715.md) | Dec 10, 2019 |
| Microsoft | Windows 10 Version 1809 for ARM64-based Systems | 17763.914 | [KB4530715](https://patchblox.com/security/data/fix/microsoft/kb4530715.md) | Dec 10, 2019 |
| Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.914 | [KB4530715](https://patchblox.com/security/data/fix/microsoft/kb4530715.md) | Dec 10, 2019 |
| Microsoft | Windows Server 2019 | 17763.914 | [KB4530715](https://patchblox.com/security/data/fix/microsoft/kb4530715.md) | Dec 10, 2019 |
| Microsoft | Windows Server 2019 (Server Core installation) | 17763.914 | [KB4530715](https://patchblox.com/security/data/fix/microsoft/kb4530715.md) | Dec 10, 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo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.