| CVE Number | Vulnerability | Product | Severity | Date |
|---|---|---|---|---|
| CVE-2026-44815 | DHCP Client Service Remote Code Execution Vulnerability | Windows 11, Windows 10, Windows Server | Critical | 01-07-2026 |
Technical Information
An unauthenticated attacker can exploit a stack-based buffer overflow in the Windows DHCP Client Service by operating a malicious DHCP server that responds with specially crafted DHCP messages to client requests, resulting in remote code execution on the vulnerable client system.
Patch release date: Jun 09, 2026
Further information on this vulnerability is available at : CVE-2026-44815
Affected Software
Windows 10 Version 1809 for 32-bit Systems,Windows 10 Version 1809 for x64-based Systems,
Windows Server 2019,
Windows Server 2019 (Server Core installation),
Windows Server 2022,
Windows Server 2022 (Server Core installation),
Windows 10 Version 21H2 for 32-bit Systems,
Windows 10 Version 21H2 for ARM64-based Systems,
Windows 10 Version 21H2 for x64-based Systems,
Windows 10 Version 22H2 for x64-based Systems,
Windows 10 Version 22H2 for ARM64-based Systems,
Windows 10 Version 22H2 for 32-bit Systems,
Windows Server 2025 (Server Core installation),
Windows 11 Version 25H2 for ARM64-based Systems,
Windows 11 Version 25H2 for x64-based Systems,
Windows 11 Version 23H2 for ARM64-based Systems,
Windows 11 Version 23H2 for x64-based Systems,
Windows 11 Version 24H2 for ARM64-based Systems,
Windows 11 Version 24H2 for x64-based Systems,
Windows Server 2025,
Windows 11 version 26H1 for x64-based Systems,
Windows 11 Version 26H1 for ARM64-based Systems,
Windows 10 Version 1607 for 32-bit Systems,
Windows 10 Version 1607 for x64-based Systems,
Windows Server 2016,
Windows Server 2016 (Server Core installation),
Windows Server 2012,
Windows Server 2012 (Server Core installation),
Windows Server 2012 R2,
Windows Server 2012 R2 (Server Core installation)