MICROSOFT-CVE-2026-49803

HIGH7.0

Windows AppX Deployment Extensions Elevation of Privilege Vulnerability

Published Jul 14, 2026

Modified 1 months ago

Details

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows AppX Deployment Service allows an authorized attacker to elevate privileges locally.

References

ADVISORY

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49803

CVSS Analysis

CVSS v2.0

7.0

Upstream

CVE-2026-49803

Ecosystems

Timeline

PublishedJul 14, 2026

ModifiedJul 21, 2026