CVE-2026-68846
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Use After Free in Windows Kernel

Publication date: 2026-09-08

Last updated on: 2026-09-09

Assigner: Microsoft Corporation

Description
Use after free in Windows Kernel allows an authorized attacker to elevate privileges over a network.

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Meta Information

Published
2026-09-08
Last Modified
2026-09-09
Generated
2026-09-09
AI Q&A
2026-09-09
EPSS Evaluated
N/A
NVD
CVE-2026-68846

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft windows_kernel *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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Executive Summary

This is a use-after-free vulnerability in the Windows Kernel. It allows an authorized attacker to elevate their privileges over a network by exploiting a flaw where memory is accessed after it has been freed.

Impact Analysis

An attacker could exploit this to gain higher privileges on your system, potentially allowing them to install programs, view or delete data, or create new accounts with full user rights.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Kernel vulnerability. Monitor Microsoft's update guide for patches and install them promptly.

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