Windows Local Session Manager (LSM) Denial of Service Vulnerability (Microsoft Windows 11 Version 24H2)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.50 % · percentile 74 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Analyzed
Description
Improper validation of specified type of input in Windows Local Session Manager (LSM) allows an authorized attacker to deny service over a network.
Weaknesses (CWE)
- CWE-1287 — Improper Validation of Specified Type of Input
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · secure@microsoft.com (Secondary) |
European references
- ENISA EUVD · EUVD-2025-34372
- GCVE · GCVE-0-2025-59257
CERT-FR advisories
- CERTFR-2025-AVI-0879 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*< 10.0.26100.6899cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*< 10.0.26200.6899cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*< 10.0.25398.1913cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*≤ 10.0.26100.6899
Affected products
| Product | Versions |
|---|---|
| Microsoft · Windows 11 Version 24H2 | affected 10.0.26100.0 < 10.0.26100.6899 |
| Microsoft · Windows 11 Version 25H2 | affected 10.0.26200.0 < 10.0.26200.6899 |
| Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation) | affected 10.0.25398.0 < 10.0.25398.1913 |
| Microsoft · Windows Server 2025 | affected 10.0.26100.0 < 10.0.26100.6899 |
| Microsoft · Windows Server 2025 (Server Core installation) | affected 10.0.26100.0 < 10.0.26100.6899 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |