March 15, 2022 · Applied Cybernetics Group
CVE-2019-0841 — Microsoft Windows
known ransomware use
Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability
- Added to KEV
2022-03-15- Federal due date
2022-04-05- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 99.3th percentile (score 0.827, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2019-0841
CISA short description
A privilege escalation vulnerability exists when Windows AppXSVC improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context.
Required action
Apply updates per vendor instructions.