CVE-2026-56184

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

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56184	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_10_21h2::::::::
	cpe:2.3:o:microsoft:windows_10_22h2::::::::
	cpe:2.3:o:microsoft:windows_11_24h2::::::::
	cpe:2.3:o:microsoft:windows_11_25h2::::::::
	cpe:2.3:o:microsoft:windows_11_26h1::::::::
	cpe:2.3:o:microsoft:windows_server_2022::::::::
	cpe:2.3:o:microsoft:windows_server_2025::::::::

History

22 Jul 2026, 11:43

Type	Values Removed	Values Added
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56184 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56184 - Patch, Vendor Advisory
First Time		Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 26h1 Microsoft windows Server 2022 Microsoft windows Server 2025 Microsoft
CPE		cpe:2.3:o:microsoft:windows_10_22h2:::::::: cpe:2.3:o:microsoft:windows_server_2025:::::::: cpe:2.3:o:microsoft:windows_11_24h2:::::::: cpe:2.3:o:microsoft:windows_10_21h2:::::::: cpe:2.3:o:microsoft:windows_server_2022:::::::: cpe:2.3:o:microsoft:windows_11_26h1:::::::: cpe:2.3:o:microsoft:windows_11_25h2::::::::

14 Jul 2026, 18:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-14 18:18

Updated : 2026-07-22 11:43

NVD link : CVE-2026-56184

Mitre link : CVE-2026-56184

CVE.ORG link : CVE-2026-56184

JSON object : View

Products Affected

microsoft

windows_11_25h2
windows_11_24h2
windows_11_26h1
windows_10_22h2
windows_10_21h2
windows_server_2022
windows_server_2025

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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