CVE-2019-1064
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.
- Score
- CVSS 3.1 7.8 High
- Status
- Analyzed - secure@microsoft.com
- Published
- 2019-06-12
- Last modified
- 2025-10-21
- Known exploited (CISA KEV)
- since 2022-03-15, action due 2022-04-05: Apply updates per vendor instructions.
- Weaknesses
- CWE-59
Affected products
- Windows 10 (Microsoft)
- Windows 10 1607 (Microsoft)
- Windows 10 1703 (Microsoft)
- Windows 10 1709 (Microsoft)
- Windows 10 1803 (Microsoft)
- Windows 10 1809 (Microsoft)
- Windows 10 1903 (Microsoft)
- Windows Server 1709 (Microsoft)
- Windows Server 1803 (Microsoft)
- Windows Server 1903 (Microsoft)
- Windows Server 2016 (Microsoft)
- Windows Server 2019 (Microsoft)
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1064
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1064
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1064
