CVE-2025-21367

HIGH

Windows 10/11, Server 2019/2022/2025 - Elevation of Privilege via Win32 Kernel Use-After-Free

Title source: llm
STIX 2.1

Description

Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability

References (1)

Core 1
Core References
Patch, Vendor Advisory vendor-advisory patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21367

Scores

CVSS v3 7.8
EPSS 0.0014
EPSS Percentile 34.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/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-416
Status published
Products (10)
microsoft/windows_10_1809 < 10.0.17763.6893 (2 CPE variants)
microsoft/windows_10_21h2 < 10.0.19044.5487
microsoft/windows_10_22h2 < 10.0.19045.5487
microsoft/windows_11_22h2 < 10.0.22621.4890
microsoft/windows_11_23h2 < 10.0.22631.4890
microsoft/windows_11_24h2 < 10.0.26100.3194
microsoft/windows_server_2019 < 10.0.17763.6893
microsoft/windows_server_2022 < 10.0.20348.3207
microsoft/windows_server_2022_23h2 < 10.0.25398.1425
microsoft/windows_server_2025 < 10.0.26100.3194
Published Feb 11, 2025
Tracked Since Feb 18, 2026