May 23, 2022 · Applied Cybernetics Group
CVE-2019-1385 — Microsoft Windows
known ransomware use
Microsoft Windows AppX Deployment Extensions Privilege Escalation Vulnerability
- Added to KEV
2022-05-23- Federal due date
2022-06-13- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 88.9th percentile (score 0.036, as of
2026-09-16) - NVD CVSS v3.1
- 7.8 (HIGH)
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2019-1385
CISA short description
A privilege escalation vulnerability exists when the Windows AppX Deployment Extensions improperly performs privilege management, resulting in access to system files.
Required action
Apply updates per vendor instructions.
NVD description
An elevation of privilege vulnerability exists when the Windows AppX Deployment Extensions improperly performs privilege management, resulting in access to system files.To exploit this vulnerability, an authenticated attacker would need to run a specially crafted application to elevate privileges.The security update addresses the vulnerability by correcting how AppX Deployment Extensions manages privileges., aka 'Windows AppX Deployment Extensions Elevation of Privilege Vulnerability'.