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CVE-2026-42977

Windows Push Notifications Elevation of Privilege Vulnerability

Published: Jun 9, 2026Updated: Jun 10, 2026 Sources: CVE List NVD
7.8CVSS
HIGH

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

EPSS Score
0.0%
Top 84.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:CC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

Affected Products

Windows 10 Version 1809
Microsoft
Operating Systems / windows
Windows 10 Version 21H2
Microsoft
Operating Systems / windows
Windows 10 Version 22H2
Microsoft
Operating Systems / windows
Windows 11 version 23H2
Microsoft
Operating Systems / windows
Windows 11 Version 23H2
Microsoft
Operating Systems / windows
and 18 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

Timeline

Published
Jun 9, 2026
Last Updated
Jun 10, 2026
3

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