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high7.8Known exploited

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

VendorProductAffected versions
MicrosoftWindows 10 1607
All versions
MicrosoftWindows 10 1703
All versions
MicrosoftWindows 10 1709
All versions
MicrosoftWindows 10 1803
All versions
MicrosoftWindows 10 1809
All versions
MicrosoftWindows 10 1903
All versions
MicrosoftWindows Server 1709
All versions
MicrosoftWindows Server 1803
All versions
MicrosoftWindows Server 1903
All versions
MicrosoftWindows Server 2016
All versions
MicrosoftWindows Server 2019
All versions

Weakness classification

References