CVE-2019-1385
Microsoft Windows AppX Deployment Extensions Privilege Escalation Vulnerability
What is affected
| Vendor | Microsoft |
|---|---|
| Product | Windows |
| Weakness | CWE-59 |
The vulnerability
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.
US federal civilian agencies were required to act by 13 June 2022 under BOD 22-01. The deadline is a compliance date, not a measure of severity — it says nothing about how dangerous the flaw is to anyone else.
Ransomware
CISA records this vulnerability as having been used in ransomware campaigns. That is a confirmed observation, not an assessment of likelihood.
Where this comes from
Every field on this page is taken from the CISA Known Exploited Vulnerabilities catalog, last synced 11 Nov 2026, 21:30. Nothing here is our own assessment. For the technical scoring, see the NVD record below.
More from Microsoft
Microsoft Office
Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability
CVE-2026-96951Microsoft Windows
Microsoft Windows Command Injection Vulnerability
CVE-2026-65660Microsoft SharePoint
Microsoft SharePoint Code Injection Vulnerability
CVE-2026-81963Microsoft Windows
Microsoft Windows Link Following Vulnerability