CVE-2025-21311: critical vulnerability in Microsoft Windows 11 Version 24H2
Windows NTLM V1 Elevation of Privilege Vulnerability
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 2.3%
Windows NTLM V1 Elevation of Privilege Vulnerability
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Affected products
Microsoft · Windows 11 Version 24H2Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft · Windows Server 2025Microsoft · Windows Server 2025 (Server Core installation)Related CVEs — Microsoft Windows 11 Version 24H2
In the same product, most dangerous first.
CVE-2025-59287CRITICALWindows Server Update Service (WSUS) Remote Code Execution VulnerabilityEPSS 100.0%KEVCVE-2024-21412HIGHInternet Shortcut Files Security Feature Bypass VulnerabilityEPSS 99.4%KEVCVE-2023-36025HIGHWindows SmartScreen Security Feature Bypass VulnerabilityEPSS 88.2%KEVCVE-2025-33053HIGHInternet Shortcut Files Remote Code Execution VulnerabilityEPSS 87.0%KEVCVE-2024-43451MEDIUMNTLM Hash Disclosure Spoofing VulnerabilityEPSS 84.3%KEVCVE-2024-38112HIGHWindows MSHTML Platform Spoofing VulnerabilityEPSS 84.2%KEV