CVE-2019-0841
HIGHCVSS 7.8/10Actively ExploitedEPSS 41.67%
Last modified
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/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
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
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2019-0841?
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.
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-0841?
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Scan your code nowSource: NVD / NIST