CVE-2026-69474

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Use After Free in Windows Overlay Filter

Publication date: 2026-09-08

Last updated on: 2026-09-08

Assigner: Microsoft Corporation

Description

Use after free in Windows Overlay Filter allows an authorized attacker to disclose information over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-08

Last Modified

2026-09-08

Generated

2026-09-09

AI Q&A

2026-09-09

EPSS Evaluated

N/A

NVD

CVE-2026-69474

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_overlay_filter	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-126	The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This vulnerability is a use after free issue in the Windows Overlay Filter. It allows an authorized attacker to disclose information over a network by exploiting a flaw where memory is accessed after it has been freed.

Impact Analysis

An attacker could exploit this to read sensitive information from memory, potentially gaining access to confidential data. The impact is limited to information disclosure and requires some user interaction or specific conditions.

Compliance Impact

This vulnerability could lead to unauthorized data disclosure, which may violate GDPR or HIPAA requirements for protecting personal or health information. Organizations must address it to maintain compliance.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows Overlay Filter vulnerability. Monitor Microsoft's security advisories for updates and ensure all systems are updated promptly.

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