HIGHCVSS v3.1 7.8Actively exploited · CISA KEV since 2022-03-15Vulnerability

CVE-2019-1064

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.

Properties

Euvd product
Windows 10 Version 1709, Windows Server, version 1803 (Server Core Installation), Windows 10 Version 1809, Windows Server 2016, Windows 10 Version 1607, Windows 10 Version 1903 for 32-bit Systems, Windows Server 2019 (Server Core installation), Windows Server 2019, Windows 10 Version 1903 for x64-based Systems, Windows Server, version 1903 (Server Core installation), Windows 10 Version 1803, Windows 10 Version 1903 for ARM64-based Systems, Windows Server 2016 (Server Core installation), Windows 10 Version 1709 for 32-bit Systems, Windows 10 Version 1703
Vulnerability name
Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability
First seen
2025-10-21T23:45:34+00:00
Cvss score
7.8
Epss score
0.06886
Last seen
2026-10-19T12:00:27+00:00
Due date
2022-04-05
Euvd assigner
microsoft
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2022-03-15T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2022-03-15
Score
7.8
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Microsoft
Cvss vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
In Signal since
initial import (Sep 2026)
Euvd base score
7.8

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CVE-2019-1064 (CVSS v3.1 7.8) — Ninja Signal Threat Intelligence | Ninja Signal