CVE-2026-58537

Use after free in Microsoft NAT Helper Components (ipnathlp.dll) 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-2026-58537	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	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_2025::::::::

History

22 Jul 2026, 17:41

Type	Values Removed	Values Added
CPE		cpe:2.3:o:microsoft:windows_11_26h1:::::::: cpe:2.3:o:microsoft:windows_11_24h2:::::::: cpe:2.3:o:microsoft:windows_11_25h2:::::::: cpe:2.3:o:microsoft:windows_server_2025::::::::
First Time		Microsoft windows 11 24h2 Microsoft windows Server 2025 Microsoft windows 11 25h2 Microsoft Microsoft windows 11 26h1
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58537 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58537 - Patch, Vendor Advisory

14 Jul 2026, 18:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-14 18:18

Updated : 2026-07-23 05:16

NVD link : CVE-2026-58537

Mitre link : CVE-2026-58537

CVE.ORG link : CVE-2026-58537

JSON object : View

Products Affected

microsoft

windows_11_25h2
windows_11_24h2
windows_11_26h1
windows_server_2025

CWE

CWE-416

Use After Free

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