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MicrosoftCVE-2026-50416

Microsoft Windows Win32K: information disclosure

Low3.3CVE-2026-50416 · Published Jul 14, 2026 · updated Jul 20, 2026

Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an authorized attacker to disclose information locally.

Microsoft advisory

Affected versions

PackageAffectedFixed in
Windows 11 Version 24H2
Product
>= 10.0.26100.0, < 10.0.26100.887510.0.26100.8875
Windows 11 Version 25H2
Product
>= 10.0.26200.0, < 10.0.26200.887510.0.26200.8875
Windows 11 version 26H1
Product
>= 10.0.28000.0, < 10.0.28000.252510.0.28000.2525
Windows Server 2025
Product
>= 10.0.26100.0, < 10.0.26100.3315810.0.26100.33158
Windows Server 2025 (Server Core installation)
Product
>= 10.0.26100.0, < 10.0.26100.3315810.0.26100.33158
Details and references
CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-200

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