CVE-2019-1253
Microsoft Windows AppX Deployment Server Privilege Escalation Vulnerability
- Published
- Sep 11, 2019
- Updated
- Oct 21, 2025
- Assigning CNA
- microsoft
- Evidence observed
- Sep 16, 2019
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 96.0%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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.
Sources
Poc for CVE-2019-1253
AppXSvc Arbitrary File Security Descriptor Overwrite EoP
Proof-of-concept exploit for CVE-2019-1253, a Windows privilege escalation vulnerability. Demonstrates exploitation technique for security research and testing.
- CVE-2019-1253Exploit
Responsible use
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