CVE-2026-70243

Use after free in Windows Kernel allows an authorized 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 LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70243	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_11_23h2:::::::arm64:*
	cpe:2.3:o:microsoft:windows_11_23h2:::::::x64:*
	cpe:2.3:o:microsoft:windows_server_2025:::::::x64:*

History

22 Oct 2026, 12:20

Type	Values Removed	Values Added
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70243 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70243 - Patch, Vendor Advisory
CPE		cpe:2.3:o:microsoft:windows_11_23h2:::::::arm64:* cpe:2.3:o:microsoft:windows_11_23h2:::::::x64:* cpe:2.3:o:microsoft:windows_server_2025:::::::x64:*
First Time		Microsoft Microsoft windows Server 2025 Microsoft windows 11 23h2

13 Oct 2026, 19:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-13 19:19

Updated : 2026-10-22 12:20

NVD link : CVE-2026-70243

Mitre link : CVE-2026-70243

CVE.ORG link : CVE-2026-70243

JSON object : View

Products Affected

microsoft

windows_11_23h2
windows_server_2025

CWE

CWE-416

Use After Free

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