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CVE-2026-21508

nvd nist
Published: Feb 10, 2026Modified: Jun 17, 2026

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7.0
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.0 / Impact: 5.9
Source: NVD

Description

Improper authentication in Windows Storage allows an authorized attacker to elevate privileges locally.

Affected (23)

13 products
Windows 10 1607
Windows 10 1809
Windows 10 21h2
Windows 10 22h2
Windows 11 23h2
Windows 11 24h2
Windows 11 25h2
Windows Server 2012
Windows Server 2016
Windows Server 2019
Windows Server 2022
Windows Server 2022 23h2
Windows Server 2025
Configuration A
23 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
version < 10.0.14393.8868
version < 10.0.14393.8868
Microsoft
version < 10.0.17763.8389
version < 10.0.17763.8389
Microsoft
version < 10.0.19044.6937
version < 10.0.19044.6937
version < 10.0.19044.6937
Microsoft
version < 10.0.19045.6937
version < 10.0.19045.6937
version < 10.0.19045.6937
Microsoft
version < 10.0.22631.6649
version < 10.0.22631.6649
Microsoft
version < 10.0.26100.7781
version < 10.0.26100.7781
Microsoft
version < 10.0.26200.7781
version < 10.0.26200.7781
Microsoft
All versions
Version r2
version < 10.0.14393.8868
version < 10.0.17763.8389
version < 10.0.20348.4711
version < 10.0.25398.2149
version < 10.0.26100.32313

References (1)

Timeline

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