by Kastro
Paper/Archive/CVE-2025-21311

CVE-2025-21311

Microsoft Windows 11 Version 24H2 — Windows NTLM V1 Elevation of Privilege Vulnerability

EPSS 2%CVSS 9.8
critical.is priorityof 100
46
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 83.0.830 × 2016.6No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Windows NTLM V1 Elevation of Privilege Vulnerability

Affected

ProductAffectedFixed inSource
Windows 11 Version 24H210.0.26100.0 – < 10.0.26100.289410.0.26100.2894CNA
Windows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0 – < 10.0.25398.136910.0.25398.1369CNA
Windows Server 202510.0.26100.0 – < 10.0.26100.289410.0.26100.2894CNA
Windows Server 2025 (Server Core installation)10.0.26100.0 – < 10.0.26100.289410.0.26100.2894CNA

Scores by source

microsoft (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2025-21311