CVE-2026-70243
Windows Kernel Elevation of Privilege Vulnerability
HIGH 7.0
At a glance
- Source
- NVD
- EPSS
- EPSS 0.30 % · percentile 23 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Analyzed
Description
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · secure@microsoft.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-99418
- GCVE · GCVE-0-2026-70243
CERT-FR advisories
- CERTFR-2026-AVI-1314 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*< 10.0.22631.7652cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*< 10.0.22631.7652cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*< 10.0.26100.33650
Affected products
| Product | Versions |
|---|---|
| Microsoft · Windows 11 version 23H2 | affected 10.0.22631.0 < 10.0.22631.7652 |
| Microsoft · Windows 11 Version 23H2 | affected 10.0.22631.0 < 10.0.22631.7652 |
| Microsoft · Windows Server 2025 | affected 10.0.26100.0 < 10.0.26100.33650 |
| Microsoft · Windows Server 2025 (Server Core installation) | affected 10.0.26100.0 < 10.0.26100.33650 |
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 |