CVE-2026-50459

Use after free in Windows Kernel allows an unauthorized attacker to elevate privileges locally.

CVSS v3 7.0 HIGH

7.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50459	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:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64:*
	cpe:2.3:o:microsoft:windows_server_2022::::::::
	cpe:2.3:o:microsoft:windows_server_2025::::::::

History

21 Jul 2026, 14:56

Type	Values Removed	Values Added
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
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50459 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50459 - Patch, Vendor Advisory
CPE		cpe:2.3:o:microsoft:windows_10_22h2:::::::: cpe:2.3:o:microsoft:windows_11_26h1:::::::x64:* cpe:2.3:o:microsoft:windows_server_2025:::::::: cpe:2.3:o:microsoft:windows_10_21h2:::::::: cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64:* cpe:2.3:o:microsoft:windows_11_24h2:::::::: cpe:2.3:o:microsoft:windows_11_25h2:::::::: cpe:2.3:o:microsoft:windows_server_2022::::::::

14 Jul 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-14 18:17

Updated : 2026-07-22 16:17

NVD link : CVE-2026-50459

Mitre link : CVE-2026-50459

CVE.ORG link : CVE-2026-50459

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-416

Use After Free

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