Description
Windows NTLM V1 Elevation of Privilege Vulnerability
References (1)
Core 1
Core References
Patch, Vendor Advisory vendor-advisory
patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21311
Scores
CVSS v3
9.8
EPSS
0.0237
EPSS Percentile
81.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-303
Status
published
Products (7)
Microsoft/Windows 11 Version 24H2
10.0.26100.0 - 10.0.26100.2894
Microsoft/Windows Server 2022, 23H2 Edition (Server Core installation)
10.0.25398.0 - 10.0.25398.1369
Microsoft/Windows Server 2025
10.0.26100.0 - 10.0.26100.2894
Microsoft/Windows Server 2025 (Server Core installation)
10.0.26100.0 - 10.0.26100.2894
microsoft/windows_11_24h2
< 10.0.26100.2894
microsoft/windows_server_2022_23h2
< 10.0.25398.1369
microsoft/windows_server_2025
< 10.0.26100.2894
Published
Jan 14, 2025
Tracked Since
Feb 18, 2026