CVE-2026-21519NVD

Vulnerability Summary

Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

Severity Level

HIGH(7.8)

Published Date

Feb 10, 2026

Last Modified

Feb 11, 2026

Exploitation Status

ACTIVE

EPSS Score (30-Day)

Data Pending

Root Weakness (CWE)

CWE-843: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v3.1 Base Metrics — Score 7.8 (HIGH)

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Microsoft Windows 10 1607 < 10.0.14393.8868
Microsoft Windows 10 1809 < 10.0.17763.8389
Microsoft Windows 10 21h2 < 10.0.19044.6937
Microsoft Windows 10 22h2 < 10.0.19045.6937
Microsoft Windows 11 23h2 < 10.0.22631.6649
Microsoft Windows 11 24h2 < 10.0.26100.7781
Microsoft Windows 11 25h2 < 10.0.26200.7781
Microsoft Windows Server 2016 < 10.0.14393.8868
Microsoft Windows Server 2019 < 10.0.17763.8389
Microsoft Windows Server 2022 < 10.0.20348.4711
Microsoft Windows Server 2022 23h2 < 10.0.25398.2149
Microsoft Windows Server 2025 < 10.0.26100.32313

Patched Versions

Microsoft Windows 10 1607 10.0.14393.8868
Microsoft Windows 10 1809 10.0.17763.8389
Microsoft Windows 10 21h2 10.0.19044.6937
Microsoft Windows 10 22h2 10.0.19045.6937
Microsoft Windows 11 23h2 10.0.22631.6649
Microsoft Windows 11 24h2 10.0.26100.7781
Microsoft Windows 11 25h2 10.0.26200.7781
Microsoft Windows Server 2016 10.0.14393.8868
Microsoft Windows Server 2019 10.0.17763.8389
Microsoft Windows Server 2022 10.0.20348.4711
Microsoft Windows Server 2022 23h2 10.0.25398.2149
Microsoft Windows Server 2025 10.0.26100.32313

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