CVE-2025-27728

Windows Kernel-Mode Driver Elevation of Privilege Vulnerability

CVE-2025-27728 is fixed in 4 products on 1 platform, first by KB5055523, released April 8, 2025. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.8

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0061

49th percentile

<p>Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 11 Version 24H2 for ARM64-based Systems	26100.3775	KB5055523	Apr 8, 2025
Windows 11 Version 24H2 for x64-based Systems	26100.3775	KB5055523	Apr 8, 2025
Windows Server 2025	26100.3775	KB5055523	Apr 8, 2025
Windows Server 2025 (Server Core installation)	26100.3775	KB5055523	Apr 8, 2025

Details

Published
April 8, 2025
Weakness
Out-of-bounds Read
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27728

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