CVE-2025-27728 Out-of-bounds read in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally

Description

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

Affected products and versions

Product	Affected versions	Fixed in
Windows Server 2025 (Server Core installation) 10.0	10.0.26100.0 → < 10.0.26100.3775	10.0.26100.3775
Windows 11 Version 24H2 10.0	10.0.26100.0 → < 10.0.26100.3775	10.0.26100.3775
Windows Server 2025 10.0	10.0.26100.0 → < 10.0.26100.3775	10.0.26100.3775

Other CVEs of Windows Server 2025 (Server Core installation)

The 3645 CVEs of Windows Server 2025 (Server Core installation) →

CVE-2026-105016 Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network 9.8 Critical CVE-2026-108136 Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally 7.8 High CVE-2026-108131 No cwe for this issue in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform… 7.5 High CVE-2026-108129 Out-of-bounds read in DNS Server allows an authorized attacker to disclose information over a network 6.5 Medium