Microsoft Windows 10 Version 21H2
At a glance
- Source
- NVD
- EPSS
- EPSS 10.07 % · percentile 96 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Analyzed
Description
Windows Hyper-V NT Kernel Integration VSP Elevation of Privilege Vulnerability
Weaknesses (CWE)
- CWE-122 — Heap-based Buffer Overflow
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21333
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21333
- https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-mitigation-script
- https://www.vicarius.io/vsociety/posts/cve-2025-21333-elevated-privilege-exposure-in-windows-hyper-v-by-microsoft-detection-script
- https://www.exploit-db.com/exploits/52436
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · secure@microsoft.com (Secondary) |
European references
- ENISA EUVD · EUVD-2025-2398
- GCVE · GCVE-0-2025-21333
CERT-FR advisories
- CERTFR-2025-AVI-0039 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*< 10.0.19044.5371cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*< 10.0.19045.5371cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*< 10.0.22621.4751cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*< 10.0.22631.4751cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*< 10.0.26100.2894cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:x64:*< 10.0.25398.1369cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*< 10.0.26100.2894
Affected products
| Product | Versions |
|---|---|
| Microsoft · Windows 10 Version 21H2 | affected 10.0.19044.0 < 10.0.19044.5371 |
| Microsoft · Windows 10 Version 22H2 | affected 10.0.19045.0 < 10.0.19045.5371 |
| Microsoft · Windows 11 version 22H2 | affected 10.0.22621.0 < 10.0.22621.4751 |
| Microsoft · Windows 11 version 22H3 | affected 10.0.22631.0 < 10.0.22631.4751 |
| Microsoft · Windows 11 Version 23H2 | affected 10.0.22631.0 < 10.0.22631.4751 |
| Microsoft · Windows 11 Version 24H2 | affected 10.0.26100.0 < 10.0.26100.2894 |
| Microsoft · Windows Server 2022, 23H2 Edition (Server Core installation) | affected 10.0.25398.0 < 10.0.25398.1369 |
| Microsoft · Windows Server 2025 | affected 10.0.26100.0 < 10.0.26100.2894 |
| Microsoft · Windows Server 2025 (Server Core installation) | affected 10.0.26100.0 < 10.0.26100.2894 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| CISA Known Exploited Vulnerabilities | CC0 1.0 |
| 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 |