CVE-2026-61933

Undergoing Analysis Undergoing Analysis - In Progress

Out-of-Bounds Read in Windows DWM Core Library

Publication date: 2026-08-11

Last updated on: 2026-08-13

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-11

Last Modified

2026-08-13

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-61933

EUVD

EUVD-2026-56338

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_server_2025	to 10.0.26100.33222 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This is an out-of-bounds read vulnerability in the Windows Desktop Window Manager (DWM) Core Library. It allows an authorized attacker with local access to read memory outside the intended buffer, potentially exposing sensitive information.

Detection Guidance

Detection typically involves monitoring for unusual system behavior or crashes related to the DWM Core Library. Check Windows Event Viewer for application crashes or errors linked to dwm.exe. Use commands like 'sfc /scannow' to verify system file integrity or 'dism /online /cleanup-image /restorehealth' for repair.

Impact Analysis

An attacker could exploit this to access confidential data stored in memory, such as passwords or encryption keys, if they already have local access to the system. This does not allow remote exploitation.

Compliance Impact

This vulnerability allows unauthorized local information disclosure, which could lead to exposure of sensitive data. For GDPR, this may violate principles of data protection and confidentiality. For HIPAA, it could compromise protected health information if exploited.

Mitigation Strategies

Apply the latest Windows security updates from Microsoft Update. Ensure your system is up to date with patches for CVE-2026-61933. Disable unnecessary user permissions if possible and monitor for suspicious activity.

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