CVE-2026-50503

HIGH

Microsoft Windows 11 Version 24H2 - Windows Runtime Elevation of Privilege Vulnerability

Title source: rule
STIX 2.1

Description

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

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Windows Runtime Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50503

Scores

CVSS v3 7.0
EPSS 0.0019
EPSS Percentile 8.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-362
Status published
Products (10)
Microsoft/Windows 11 Version 24H2 10.0.26100.0 - 10.0.26100.8875
Microsoft/Windows 11 Version 25H2 10.0.26200.0 - 10.0.26200.8875
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.2269
Microsoft/Windows 11 version 26H1 10.0.28000.0 - 10.0.28000.2525
Microsoft/Windows Server 2025 10.0.26100.0 - 10.0.26100.33158
Microsoft/Windows Server 2025 (Server Core installation) 10.0.26100.0 - 10.0.26100.33158
microsoft/windows_11_24h2 < 10.0.26100.8875 (2 CPE variants)
microsoft/windows_11_25h2 < 10.0.26200.8875 (2 CPE variants)
microsoft/windows_11_26h1 < 10.0.28000.2525 (2 CPE variants)
microsoft/windows_server_2025 < 10.0.26100.33158
Published Jul 14, 2026
Tracked Since Jul 14, 2026