MICROSOFT-CVE-2026-42978

HIGH7.8

Windows Push Notifications Elevation of Privilege Vulnerability

Published Jun 26, 2026

Modified 1 months ago

Details

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

References

ADVISORY

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42978

CVSS Analysis

CVSS v2.0

7.8

Upstream

CVE-2026-42978

Ecosystems

Timeline

PublishedJun 26, 2026

ModifiedJun 26, 2026