Vulnerability Intelligence Report
Microsoft Windows AppX Deployment Server Privilege Escalation Vulnerability
CVE-2019-1253
An elevation of privilege vulnerability exists when the Windows AppX Deployment Server improperly handles junctions.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1215, CVE-2019-1278, CVE-2019-1303.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:11.62%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-59 ↗CWE-59 Improper Link Resolution Before File Access ('Link Following')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Windows | 10 Version 1703 for 32-bit Systems (affected), 10 Version 1703 for x64-based Systems (affected), 10 Version 1709 for 32-bit Systems (affected), 10 Version 1709 for x64-based Systems (affected), 10 Version 1803 for 32-bit Systems (affected), 10 Version 1803 for x64-based Systems (affected), 10 Version 1803 for ARM64-based Systems (affected), 10 Version 1809 for 32-bit Systems (affected), 10 Version 1809 for x64-based Systems (affected), 10 Version 1809 for ARM64-based Systems (affected), 10 Version 1709 for ARM64-based Systems (affected) |
| Microsoft | Windows Server | version 1803 (Core Installation) (affected), 2019 (affected), 2019 (Core installation) (affected) |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | unspecified (affected) |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | unspecified (affected) |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | unspecified (affected) |
| Microsoft | Windows Server, version 1903 (Server Core installation) | unspecified (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2018-11-26T00:00:00 |
| Published | 2019-09-11T21:24:59 |
| Last Updated | 2025-10-21T23:45:30 |
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