CVE-2019-1064Windows Elevation of Privilege Vulnerability
Updated under an hour ago ()
Does this affect you?
It affects Microsoft Windows 10 Version 1703 and 16 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Mar 15, 2022; federal agencies had to remediate by Apr 5, 2022, and it is known to be used in ransomware. Treat that date as your deadline.
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An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
- Weakness (CWE)
- CWE-59
- Known exploited
- Added to CISA KEV Mar 15, 2022; federal remediation due Apr 5, 2022; known ransomware useApply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 6.89% (percentile 94)
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Microsoft Windows 10 Version 1703 microsoft:windows_10_1703 | from 10.0.0 before publication | CNA record |
Microsoft Windows 10 Version 1803 microsoft:windows_10_1803 | from 10.0.0 before publication | CNA record |
Microsoft Windows Server, version 1803 (Server Core Installation) microsoft:windows_server_version_1803_server_core_installation (from the name) | from 10.0.0 before publication | CNA record |
Microsoft Windows 10 Version 1809 microsoft:windows_10_1809 | from 10.0.17763.0 before publication | CNA record |
Microsoft Windows Server 2019 microsoft:windows_server_2019 (from the name) | from 10.0.17763.0 before publication | CNA record |
Microsoft Windows 10 Version 1709 for 32-bit Systems microsoft:windows_10_version_1709_for_32_bit_systems (from the name) | from 10.0.0 before publication | CNA record |
Microsoft Windows 10 Version 1709 microsoft:windows_10_1709 | from 10.0.0 before publication | CNA record |
Microsoft Windows 10 Version 1903 for 32-bit Systems microsoft:windows_10_version_1903_for_32_bit_systems (from the name) | from 10.0.0 before publication | CNA record |
Microsoft Windows 10 Version 1903 for x64-based Systems microsoft:windows_10_version_1903_for_x64_based_systems (from the name) | from 10.0.0 before publication | CNA record |
Microsoft Windows 10 Version 1903 for ARM64-based Systems microsoft:windows_10_version_1903_for_arm64_based_systems (from the name) | from 10.0.0 before publication | CNA record |
Microsoft Windows Server, version 1903 (Server Core installation) microsoft:windows_server_version_1903_server_core_installation (from the name) | from 10.0.0 before publication | CNA record |
Microsoft Windows 10 Version 1607 microsoft:windows_10_1607 | from 10.0.14393.0 before publication | CNA record |
Microsoft Windows Server 2016 microsoft:windows_server_2016 (from the name) | from 10.0.14393.0 before publication | CNA record |
microsoft windows_10_1607 microsoft:windows_10_1607 | all versions; all versions | NVD |
microsoft windows_10_1703 microsoft:windows_10_1703 | all versions; all versions | NVD |
microsoft windows_10_1709 microsoft:windows_10_1709 | all versions; all versions; all versions | NVD |
microsoft windows_10_1803 microsoft:windows_10_1803 | all versions; all versions; all versions | NVD |
microsoft windows_10_1809 microsoft:windows_10_1809 | all versions; all versions; all versions | NVD |
microsoft windows_10_1903 microsoft:windows_10_1903 | all versions; all versions; all versions | NVD |
microsoft windows_server_1709 microsoft:windows_server_1709 | all versions | NVD |
microsoft windows_server_1803 microsoft:windows_server_1803 | all versions | NVD |
microsoft windows_server_1903 microsoft:windows_server_1903 | all versions | NVD |
microsoft windows_server_2016 microsoft:windows_server_2016 | all versions | NVD |
microsoft windows_server_2019 microsoft:windows_server_2019 | all versions | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1064vendor-advisory, patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1064patch, vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1064us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.