CVE-2026-49173

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

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

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-2026-49173	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_11_26h1:::::::x64:*
	cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64:*

History

24 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Uso después de liberar en el kernel de Windows permite a un atacante autorizado elevar privilegios localmente.

Information

Published : 2026-07-14 17:16

Updated : 2026-10-24 21:10

NVD link : CVE-2026-49173

Mitre link : CVE-2026-49173

CVE.ORG link : CVE-2026-49173

JSON object : View

Products Affected

microsoft

windows_11_26h1

CWE

CWE-416

Use After Free

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