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CVE Number Vulnerability Product Severity Date
CVE-2025-21377 NTLM Hash Disclosure Spoofing Vulnerability Windows 10, Windows 11, Windows Server Important 26-02-2025

Technical Information

“The attacker may be able to authenticate as the user by exploiting this vulnerability which discloses user’s NTLMv2 hash. To exploit this vulnerability, attacker requires a minimal user interaction with a malicious file such as selecting (single-click), inspecting (right-click), or performing an action other than opening or executing the file.

Patch release date: Feb 11, 2025
Further information on this vulnerability is available at : CVE-2025-21377

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 11 Version 22H2 for ARM64-based Systems,
Windows 11 Version 22H2 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 23H2 for ARM64-based Systems,
Windows 11 Version 23H2 for x64-based Systems,
Windows Server 2022, 23H2 Edition (Server Core installation),
Windows 11 Version 24H2 for ARM64-based Systems,
Windows 11 Version 24H2 for x64-based Systems,
Windows Server 2025,
Windows 10 for 32-bit Systems,
Windows 10 for x64-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 2008 for 32-bit Systems Service Pack 2,
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation),
Windows Server 2008 for x64-based Systems Service Pack 2,
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation),
Windows Server 2008 R2 for x64-based Systems Service Pack 1,
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation),
Windows Server 2012,
Windows Server 2012 (Server Core installation),
Windows Server 2012 R2,
Windows Server 2012 R2 (Server Core installation)