CASCACascade Atlas

Evidence dossier

CVE-2019-1064

Windows Elevation of Privilege Vulnerability

63.2–79.7Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

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.

State
PUBLISHED
Published
Jun 12, 2019
Updated
Oct 21, 2025
Evidence coverage
85%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS6.89%

2026-07-18 · v2026.06.15 · percentile 93.3%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

microsoftoriginal assertion
container

Windows Elevation of Privilege Vulnerability

CISA KEVoriginal assertion
observed_exploitation

Microsoft Windows AppX Deployment Service (AppXSVC) Privilege Escalation Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.068860000000; percentile 0.933350000000

Applicability

Cited product scope

Trace impact →
MicrosoftWindows 10 Version 1607
[{"status": "affected", "version": "10.0.14393.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1703
[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1709
[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1709 for 32-bit Systems
[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1803
[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1809
[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1809
[{"status": "affected", "version": "10.0.17763.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1903 for 32-bit Systems
[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1903 for ARM64-based Systems
[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows 10 Version 1903 for x64-based Systems
[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows Server 2016
[{"status": "affected", "version": "10.0.14393.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows Server 2016 (Server Core installation)
[{"status": "affected", "version": "10.0.14393.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows Server 2019
[{"status": "affected", "version": "10.0.17763.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows Server 2019 (Server Core installation)
[{"status": "affected", "version": "10.0.17763.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows Server, version 1803 (Server Core Installation)
[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]unknown
MicrosoftWindows Server, version 1903 (Server Core installation)
[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:x64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1703:-:*:*:*:*:*:x86:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:arm64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:x64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1709:-:*:*:*:*:*:x86:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:arm64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:x64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1803:-:*:*:*:*:*:x86:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:arm64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:x64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_10_1903:-:*:*:*:*:*:x86:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_server_1709:-:*:*:*:*:*:x64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_server_1803:-:*:*:*:*:*:x64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_server_1903:-:*:*:*:*:*:x64:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

7.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2
nvd@nist.govCVSS 2.0 · role PrimaryAV:L/AC:L/Au:N/C:C/I:C/A:C
7.8
secure@microsoft.comCVSS 3.1 · role SecondaryCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8
microsoftCVSS 3.1 · role unknownCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Limitations and unknowns

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.