# CVE-2019-1385: Microsoft Windows AppX Deployment Extensions Privilege Escalation Vulnerability

> CVE-2019-1385: Microsoft Windows AppX Deployment Extensions Privilege Escalation Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2019-1385
Last updated: 2026-08-12T03:55:59Z

- Published: 2019-11-12 18:52 UTC · Updated: 2026-08-12 03:55 UTC · Assigner: microsoft
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS: 3.6%, 89th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-05-23, federal due date 2022-06-13, ransomware use: Known

## Description

An elevation of privilege vulnerability exists when the Windows AppX Deployment Extensions improperly performs privilege management, resulting in access to system files.To exploit this vulnerability, an authenticated attacker would need to run a specially crafted application to elevate privileges.The security update addresses the vulnerability by correcting how AppX Deployment Extensions manages privileges., aka 'Windows AppX Deployment Extensions Elevation of Privilege Vulnerability'.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft: Windows
- Microsoft: Windows 10 Version 1903 for 32-bit Systems
- Microsoft: Windows 10 Version 1903 for ARM64-based Systems
- Microsoft: Windows 10 Version 1903 for x64-based Systems
- Microsoft: Windows Server
- Microsoft: Windows Server, version 1903 (Server Core installation)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2019-1385)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2019-1385)
- [https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1385](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1385)
- [https://www.zerodayinitiative.com/advisories/ZDI-19-979/](https://www.zerodayinitiative.com/advisories/ZDI-19-979/)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2019-1385 · Markdown: https://rewindex.com/cve/CVE-2019-1385.md · JSON: https://rewindex.com/api/v1/cves/CVE-2019-1385 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:46:28.081Z