Unrated severityNVD Advisory· Published Jul 8, 2025· Updated Feb 13, 2026

Windows Server Setup and Boot Event Collection Remote Code Execution Vulnerability

CVE-2025-49666

Description

Heap-based buffer overflow in Windows Kernel allows an authorized attacker to execute code over a network.

Microsoft/Windows Kernelllm-fuzzy
Microsoft/Windows Server 2016cpe-rescue
Range: 10.0.14393.0
Microsoft/Windows Server 2016 (Server Core installation)v5
Range: 10.0.14393.0
Microsoft/Windows Server 2019cpe-rescue
Range: 10.0.17763.0
Microsoft/Windows Server 2019 (Server Core installation)v5
Range: 10.0.17763.0
Microsoft/Windows Server 2003cpe-rescue
Range: 10.0.20348.0
Microsoft/Windows Server 2022, 23H2 Edition (Server Core installation)v5
Range: 10.0.25398.0
Microsoft/Windows Server 2025cpe-rescue
Range: 10.0.26100.0
Microsoft/Windows Server 2025 (Server Core installation)v5
Range: 10.0.26100.0

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