CVE-2026-45653
Undergoing Analysis Undergoing Analysis - In Progress
Use After Free in Windows Kernel Allows Local Privilege Escalation

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Microsoft Corporation

Description
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
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Meta Information
Published
2026-06-09
Last Modified
2026-06-09
Generated
2026-06-10
AI Q&A
2026-06-09
EPSS Evaluated
N/A
NVD
CVE-2026-45653
EUVD
EUVD-2026-35569
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-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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Executive Summary

This vulnerability is a use after free issue in the Windows Kernel. It allows an authorized attacker to elevate their privileges locally on the affected system.

Impact Analysis

The vulnerability can impact you by allowing an attacker with local access and some level of authorization to increase their privileges. This means they could gain higher-level permissions than intended, potentially leading to full control over the affected system.

Mitigation Strategies

This vulnerability allows an authorized attacker to elevate privileges locally via a use after free in the Windows Kernel.

To mitigate this vulnerability, it is recommended to apply the security updates provided by Microsoft as soon as they become available.

Ensure that only trusted users have local access to systems, as the attack requires local privileges.

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