← All advisories

Unrated severityNVD Advisory· Published Feb 10, 2026· Updated Apr 10, 2026

Windows Kernel Elevation of Privilege Vulnerability

CVE-2026-21245

Description

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

Affected products

6

Microsoft/Windows Kernelllm-fuzzy
Microsoft/Windows 11 24h2cpe-rescue
Range: 10.0.26100.0
Microsoft/Windows 11 25h2cpe-rescue
Range: 10.0.26200.0
Microsoft/Windows 11 26h1cpe-rescue
Range: 10.0.28000.0
Microsoft/Windows Server 2025cpe-rescue
Range: 10.0.26100.0
Microsoft/Windows Server 2025 (Server Core installation)v5
Range: 10.0.26100.0

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21245mitrevendor-advisorypatch

News mentions

0

No linked articles in our index yet.