CVE-2026-56184
Win32k Information Disclosure Vulnerability
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an authorized attacker to disclose information locally.
| Vendor | microsoft |
| Product | windows 10 version 21h2 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Jul 14, 2026 |
| Last Updated | Jul 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Windows 10 Version 21H2
10.0.19044.0 < 10.0.19044.7548
Microsoft / Windows 10 Version 22H2
10.0.19045.0 < 10.0.19045.7548
Microsoft / Windows 11 Version 24H2
10.0.26100.0 < 10.0.26100.8875
Microsoft / Windows 11 Version 25H2
10.0.26200.0 < 10.0.26200.8875
Microsoft / Windows 11 version 26H1
10.0.28000.0 < 10.0.28000.2525
Microsoft / Windows Server 2022
10.0.20348.0 < 10.0.20348.5386
Microsoft / Windows Server 2025
10.0.26100.0 < 10.0.26100.33158
Microsoft / Windows Server 2025 (Server Core installation)
10.0.26100.0 < 10.0.26100.33158