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CVE-2026-20930

nvd nist
Published: Apr 14, 2026Modified: Apr 24, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Exploitability: 1.1 / Impact: 6.0
Source: secure@microsoft.com (Secondary)

Description

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

Affected (18)

Microsoft
10 products
Windows 10 1809
Windows 10 21h2
Windows 10 22h2
Windows 11 23h2
Windows 11 24h2
Windows 11 25h2
Windows Server 2019
Windows Server 2022
Windows Server 2022 23h2
Windows Server 2025
Configuration A
18 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
Windows 10 1809
Before 10.0.17763.8644
Windows 10 1809
Before 10.0.17763.8644
Microsoft
Windows 10 21h2
Before 10.0.19044.7184
Windows 10 21h2
Before 10.0.19044.7184
Windows 10 21h2
Before 10.0.19044.7184
Microsoft
Windows 10 22h2
Before 10.0.19045.7184
Windows 10 22h2
Before 10.0.19045.7184
Windows 10 22h2
Before 10.0.19045.7184
Microsoft
Windows 11 23h2
Before 10.0.22631.6936
Windows 11 23h2
Before 10.0.22631.6936
Microsoft
Windows 11 24h2
Before 10.0.26100.8246
Windows 11 24h2
Before 10.0.26100.8246
Microsoft
Windows 11 25h2
Before 10.0.26200.8246
Windows 11 25h2
Before 10.0.26200.8246
Windows Server 2019
Before 10.0.17763.8644
Windows Server 2022
Before 10.0.20348.5020
Windows Server 2022 23h2
Before 10.0.25398.2274
Windows Server 2025
Before 10.0.26100.32690

Related CWEs

CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (1)

Source: secure@microsoft.com
Vendor Advisory

Timeline

No history available yet.