CVE-2025-64661

HIGH

Microsoft Windows 10 1607 < 10.0.14393.8688 - Race Condition

Title source: rule

Description

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

References (1)

[Vendor Advisory] https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-64661

Scores

CVSS v3 7.8

EPSS 0.0005

EPSS Percentile 14.1%

Attack Vector LOCAL

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

Classification

CWE

CWE-362

Status published

Affected Products (14)

microsoft/windows_10_1607 < 10.0.14393.8688

microsoft/windows_10_1809 < 10.0.17763.8146

microsoft/windows_10_21h2 < 10.0.19044.6691

microsoft/windows_10_22h2 < 10.0.19045.6691

microsoft/windows_11_23h2 < 10.0.22631.6345

microsoft/windows_11_24h2 < 10.0.26100.7392

microsoft/windows_11_25h2 < 10.0.26200.7392

microsoft/windows_server_2016 < 10.0.14393.8688

microsoft/windows_server_2019 < 10.0.17763.8146

microsoft/windows_server_2022 < 10.0.20348.4467

microsoft/windows_server_2022_23h2 < 10.0.25398.2025

microsoft/windows_server_2025 < 10.0.26100.7392

Timeline

Published Dec 09, 2025

Tracked Since Feb 18, 2026