# CVE-2019-0841: Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability

> CVE-2019-0841: Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2019-0841
Last updated: 2025-10-21T23:45:39Z

- Published: 2019-04-09 20:18 UTC · Updated: 2025-10-21 23:45 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: 41.4%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-15, federal due date 2022-04-05, ransomware use: Known

## Description

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0836.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft: Windows
- Microsoft: Windows Server

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2019-0841)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2019-0841)
- [http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-Service-Privilege-Escalation.html](http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-Service-Privilege-Escalation.html)
- [http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-Privilege-Escalation.html](http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-Privilege-Escalation.html)
- [http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html](http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html)
- [http://packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html](http://packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html)
- [http://packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-Escalation.html](http://packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-Escalation.html)
- [https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841)
- [https://www.exploit-db.com/exploits/46683/](https://www.exploit-db.com/exploits/46683/)
- [https://www.zerodayinitiative.com/advisories/ZDI-19-360/](https://www.zerodayinitiative.com/advisories/ZDI-19-360/)

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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-2019-0841 · Markdown: https://rewindex.com/cve/CVE-2019-0841.md · JSON: https://rewindex.com/api/v1/cves/CVE-2019-0841 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T01:59:14.951Z