CVE-2019-1064
Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2022-03-15. Federal due date: 2022-04-05.
Apply updates per vendor instructions.
Impact
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1607 | All 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 10 1903 | All versions |
| Microsoft | Windows Server 1709 | All versions |
| Microsoft | Windows Server 1803 | All versions |
| Microsoft | Windows Server 1903 | All versions |
| Microsoft | Windows Server 2016 | All versions |
| Microsoft | Windows Server 2019 | All versions |