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OpenAdvisories
Medium · 5.5 CVE-2026-62798 EUVD-2026-56387GHSA-mqr9-rmf4-cr4m

Win32k Information Disclosure Vulnerability

Published Aug 11, 2026 · Updated Nov 10, 2026 · Assigned by microsoft

Description

Untrusted pointer dereference in Windows Win32K allows an authorized attacker to disclose information locally.

Affected products

VendorProductAffectedFixed
Microsoft Windows 11 version 23H2 10.0.22631.0 – < 10.0.22631.7517 10.0.22631.7517
Microsoft Windows 11 Version 24H2 10.0.26100.0 – < 10.0.26100.9168 10.0.26100.9168
Microsoft Windows 11 Version 25H2 10.0.26200.0 – < 10.0.26200.9168 10.0.26200.9168
Microsoft Windows 11 version 26H1 10.0.28000.0 – < 10.0.28000.2704 10.0.28000.2704
Microsoft Windows Server 2025 10.0.26100.0 – < 10.0.26100.33296 10.0.26100.33296
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 – < 10.0.26100.33296 10.0.26100.33296

Advisories 3

References