CVE-2026-42978
Windows Push Notifications Elevation of Privilege Vulnerability
HIGH 7.8EPSS 0.2%
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.
- Affected
- Microsoft · Windows 10 Version 1809 · Windows 10 Version 21H2 · Windows 10 Version 22H2 · Windows 11 version 23H2 · Windows 11 Version 23H2 · Windows 11 Version 24H2
- CVSS v3.1 MICROSOFT
- 7.8 HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS
- 0.20% chance of exploitation in the next 30 days, 10th percentile
- Published
- 2026-06-09
- Updated
- 2026-09-24
Proof-of-concept exploits (2)
- grizzzer/CVE-2026-42978-PoC-Research28★ · 2026-06-23
- coactionbrittlemaidenhair51/CVE-2026-42978-PoC-Research0★ · 2026-10-13