CVE-2026-50378

HighCVSS 7.0/10Last modified Jul 22, 2026

Description

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

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-362

Affected software

VendorProductVersions
MicrosoftWindows 10 Version 1809>= 10.0.17763.0, < 10.0.17763.9020
MicrosoftWindows 10 Version 21H2>= 10.0.19044.0, < 10.0.19044.7548
MicrosoftWindows 10 Version 22H2>= 10.0.19045.0, < 10.0.19045.7548
MicrosoftWindows 11 Version 24H2>= 10.0.26100.0, < 10.0.26100.8875
MicrosoftWindows 11 Version 25H2>= 10.0.26200.0, < 10.0.26200.8875
MicrosoftWindows 11 version 26H1>= 10.0.28000.0, < 10.0.28000.2525
MicrosoftWindows Server 2019>= 10.0.17763.0, < 10.0.17763.9020
MicrosoftWindows Server 2019 (Server Core installation)>= 10.0.17763.0, < 10.0.17763.9020
MicrosoftWindows Server 2022>= 10.0.20348.0, < 10.0.20348.5386
MicrosoftWindows Server 2025>= 10.0.26100.0, < 10.0.26100.33158
MicrosoftWindows Server 2025 (Server Core installation)>= 10.0.26100.0, < 10.0.26100.33158

References

Timeline

Published
Jul 14, 2026
Last modified
Jul 22, 2026
NVD status
Analyzed

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CVE-2026-50378: High severity, CVSS 7.0 | Vulnix