CVE-2019-0841

Name: CVE-2019-0841
Creator: NVD / NIST
Published: 2019-04-09T21:29:01.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10Actively ExploitedEPSS 41.67%

Last modified Jun 17, 2026

CVE-2019-0841 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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 has confirmed active exploitation in the wild. EPSS estimates a 41.67% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

41.67%

98.5th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Apr 5, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microsoft	Windows 10 1703	All versions
Microsoft	Windows 10 1709	All versions
Microsoft	Windows 10 1803	All versions
Microsoft	Windows 10 1809	All versions
Microsoft	Windows Server 2016	1803
Microsoft	Windows Server 2019	All versions

References

http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-Service-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841Patch, Vendor Advisory
https://www.exploit-db.com/exploits/46683/Exploit, Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-19-360/Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-Service-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.htmlThird Party Advisory, VDB Entry
http://packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841Patch, Vendor Advisory
https://www.exploit-db.com/exploits/46683/Exploit, Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-19-360/Third Party Advisory, VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0841US Government Resource

Timeline

Published: Apr 9, 2019
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2019-0841?

How severe is CVE-2019-0841?

CVE-2019-0841 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 41.67% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2019-0841?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-0841?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST