CVE-2026-69931

Windows Storage Elevation of Privilege Vulnerability

En bref

Sévérité: HIGH 7.0
EPSS: EPSS 0.23 % · centile 14 (2026-10-27)
État: PUBLISHED
Publiée: 2026-10-13
Mise à jour: 2026-10-27
Attribuée par: microsoft
Statut NVD: Analyzed

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Storage allows an authorized attacker to elevate privileges locally.

Scores

Version	Score	Vecteur	Évalué par
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)

Faiblesses (CWE)

Références européennes

ENISA EUVD · EUVD-2026-99840
GCVE · GCVE-0-2026-69931

Avis du CERT-FR

CERTFR-2026-AVI-1314 — Multiples vulnérabilités dans Microsoft Windows · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* < 10.0.17763.9376
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* < 10.0.17763.9376
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:* < 10.0.19044.7807
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:* < 10.0.19044.7807
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:* < 10.0.19044.7807
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:* < 10.0.19045.7807
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:* < 10.0.19045.7807
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:* < 10.0.19045.7807
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:* < 10.0.22631.7652
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:* < 10.0.22631.7652
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:* < 10.0.26100.9711
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:* < 10.0.26100.9711
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:* < 10.0.26200.9711
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:* < 10.0.26200.9711
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:* < 10.0.28000.3231
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:* < 10.0.28000.3231
cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:arm64:* < 10.0.26300.9711
cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:x64:* < 10.0.26300.9711
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:x64:* < 10.0.17763.9376
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:x64:* < 10.0.20348.5761
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:* < 10.0.26100.33650

Produits affectés

Produit	Versions
Microsoft · Windows 10 Version 1809	affected 10.0.17763.0 < 10.0.17763.9376
Microsoft · Windows 10 Version 21H2	affected 10.0.19044.0 < 10.0.19044.7807
Microsoft · Windows 10 Version 22H2	affected 10.0.19045.0 < 10.0.19045.7807
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 11 Version 24H2	affected 10.0.26100.0 < 10.0.26100.9711
Microsoft · Windows 11 Version 25H2	affected 10.0.26200.0 < 10.0.26200.9711
Microsoft · Windows 11 version 26H1	affected 10.0.28000.0 < 10.0.28000.3231
Microsoft · Windows 11 Version 26H2	affected 10.0.26300.0 < 10.0.26300.9711
Microsoft · Windows Server 2019	affected 10.0.17763.0 < 10.0.17763.9376
Microsoft · Windows Server 2019 (Server Core installation)	affected 10.0.17763.0 < 10.0.17763.9376
Microsoft · Windows Server 2022	affected 10.0.20348.0 < 10.0.20348.5761
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

Références

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69931

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