CVE-2025-21311

CRITICAL

Windows NTLM < - Privilege Escalation

Title source: llm
STIX 2.1

Description

Windows NTLM V1 Elevation of Privilege Vulnerability

Scores

CVSS v3 9.8
EPSS 0.0328
EPSS Percentile 87.2%
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 (3)
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