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CVE-2026-70273high7.0

Windows Win32k Elevation of Privilege Vulnerability

Impact

Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

Source excerpt · microsoft

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

Microsoft · Windows 11 Version 24H2

Platforms: ARM64-based Systems, x64-based Systems

Version / rangeSource status
10.0.26100.0 to before 10.0.26100.9711affected
microsoft version evidence

Microsoft · Windows 11 Version 25H2

Platforms: ARM64-based Systems, x64-based Systems

Version / rangeSource status
10.0.26200.0 to before 10.0.26200.9711affected
microsoft version evidence

Microsoft · Windows 11 version 26H1

Platforms: ARM64-based Systems, x64-based Systems

Version / rangeSource status
10.0.28000.0 to before 10.0.28000.3231affected
microsoft version evidence

Microsoft · Windows 11 Version 26H2

Platforms: ARM64-based Systems, x64-based Systems

Version / rangeSource status
10.0.26300.0 to before 10.0.26300.9711affected
microsoft version evidence

Microsoft · Windows Server 2025

Platforms: x64-based Systems

Version / rangeSource status
10.0.26100.0 to before 10.0.26100.33650affected
microsoft version evidence

Microsoft · Windows Server 2025 (Server Core installation)

Platforms: x64-based Systems

Version / rangeSource status
10.0.26100.0 to before 10.0.26100.33650affected
microsoft version evidence

Original source description

Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

References