CVE-2019-0841: Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability
High · CVSS 7.8 (CVSS 3.1)KEV known exploitedEPSS 41.4%, 99th percentilePublished Updated Assigner: microsoft
In CISA’s Known Exploited Vulnerabilities catalog: Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
Required action: Apply updates per vendor instructions.
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.
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Microsoft: WindowsMicrosoft: Windows Server
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-Service-Privilege-Esca… (opens in new tab)
- packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-Privilege-Escalation.html (opens in new tab)
- packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-Service-Local-Privileg… (opens in new tab)
- packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-Service-Local-Privileg… (opens in new tab)
- packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-Escalation.html (opens in new tab)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841 (opens in new tab)
- www.exploit-db.com/exploits/46683/ (opens in new tab)
- www.zerodayinitiative.com/advisories/ZDI-19-360/ (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)