CVE-2026-42983
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Use After Free in Windows DWM Core Library Allows Privilege Escalation

Publication date: 2026-06-09

Last updated on: 2026-06-09

Assigner: Microsoft Corporation

Description
Use after free in Windows DWM Core Library 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-2026-42983
EUVD
EUVD-2026-35752
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
microsoft dwm_core_library *
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 vulnerability is a use after free issue in the Windows DWM Core Library. It allows an authorized attacker to elevate their privileges locally on the affected system.

Impact Analysis

An attacker who exploits this vulnerability can gain higher privileges on the local system than they are normally authorized to have. This can lead to full control over the affected system, potentially allowing the attacker to execute arbitrary code, access sensitive information, or disrupt system operations.

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