March 15, 2022 · Applied Cybernetics Group
CVE-2019-1253 — Microsoft Windows
known ransomware use
Microsoft Windows AppX Deployment Server Privilege Escalation Vulnerability
- Added to KEV
2022-03-15- Federal due date
2022-04-05- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 95.5th percentile (score 0.116, as of
2026-07-13) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2019-1253
CISA short description
A privilege escalation vulnerability exists when the Windows AppX Deployment Server improperly handles junctions.
Required action
Apply updates per vendor instructions.