CVE-2026-69775: Windows DWM Core Library Elevation of Privilege Vulnerability

Published Sep 8, 2026
·
Updated

Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges over a network.

Other sources

Windows DWM Core Library Elevation of Privilege Vulnerability

Microsoft

Affected Software

4 affected componentsFixes available
Microsoft Windows 11=23H2
10.0.22631.7582
Microsoft Windows Server 2025<10.0.26100.33438
10.0.26100.33438
Microsoft Windows Server 2025<10.0.26100.33438
10.0.26100.33438
Microsoft Windows 11=23H2
10.0.22631.7582

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.22631.7582Patch KB5122880
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.33438Patch KB5122871

Event History

Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:12 PM
Data Sourced
via MITRE·05:12 PM
DescriptionSeverity
Data Sourced
via NVD·06:19 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Which systems are identified as affected?

The affected software listed is Microsoft Windows 11 and Microsoft Windows Server 2025.

2

What does an attacker need to exploit this issue?

The attacker must be authorized and have low privileges, and exploitation is described as occurring over a network. The attack has high complexity and requires user interaction.

3

Is there configuration or workaround guidance available here?

No default-configuration status, mitigation, workaround, or fixed-version information is provided in the available data.

Contact

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