CVE-2025-55224

HIGH

Windows Win32K - GRFX < unknown - Local Code Execution

Title source: llm

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Win32K - GRFX allows an authorized attacker to execute code locally.

References (1)

[Vendor Advisory] https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55224

Scores

CVSS v3 7.8

EPSS 0.0003

EPSS Percentile 10.0%

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 CWE-416

Status published

Affected Products (10)

microsoft/windows_10_1809 < 10.0.17763.7792

microsoft/windows_10_21h2 < 10.0.19044.6332

microsoft/windows_10_22h2 < 10.0.19045.6332

microsoft/windows_11_22h2 < 10.0.22621.5909

microsoft/windows_11_23h2 < 10.0.22631.5909

microsoft/windows_11_24h2 < 10.0.26100.6508

microsoft/windows_server_2019 < 10.0.17763.7792

microsoft/windows_server_2022 < 10.0.20348.4106

microsoft/windows_server_2022_23h2 < 10.0.25398.1849

microsoft/windows_server_2025 < 10.0.26100.6508

Timeline

Published Sep 09, 2025

Tracked Since Feb 18, 2026