CVE-2026-69566: Windows NTFS Remote Code Execution Vulnerability

Published Sep 8, 2026
·
Updated

Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code with a physical attack.

Other sources

Windows NTFS Remote Code Execution Vulnerability

— Microsoft

Affected Software

55 affected componentsFixes available
Microsoft Windows
Microsoft Windows Server 2012 R2<6.3.9600.23397
6.3.9600.23397
Microsoft Windows 10=22H2
10.0.19045.7725
Microsoft Windows Server 2012 R2<6.3.9600.23397
6.3.9600.23397
Microsoft Windows Server 2016<10.0.14393.9512
10.0.14393.9512
Microsoft Windows Server 2012<6.2.9200.26349
6.2.9200.26349
Microsoft Windows Server 2012<6.2.9200.26349
6.2.9200.26349
Microsoft Windows 10=1607
10.0.14393.9512
Microsoft Windows Server 2016<10.0.14393.9512
10.0.14393.9512
Microsoft Windows 11=26H1
10.0.28000.2954
Microsoft Windows 11=23H2
10.0.22631.7582
Microsoft Windows 11=26H1
10.0.28000.2954
Microsoft Windows 10=1607
10.0.14393.9512
Microsoft Windows 10=1809
10.0.17763.9245
Microsoft Windows 11=24H2
10.0.26100.9445
Microsoft Windows 11=24H2
10.0.26100.9445
Microsoft Windows 11=25H2
10.0.26200.9445
Microsoft Windows 11=23H2
10.0.22631.7582
Microsoft Windows 10=22H2
10.0.19045.7725
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=25H2
10.0.26200.9445
Microsoft Windows 10=21H2
10.0.19044.7725
Microsoft Windows Server 2022<10.0.20348.5622
10.0.20348.5622
Microsoft Windows 10=22H2
10.0.19045.7725
Microsoft Windows 10=1809
10.0.17763.9245
Microsoft Windows 10=21H2
10.0.19044.7725
Microsoft Windows Server 2019<10.0.17763.9245
10.0.17763.9245
Microsoft Windows Server 2022<10.0.20348.5622
10.0.20348.5622
Microsoft Windows 10=21H2
10.0.19044.7725
Microsoft Windows Server 2019<10.0.17763.9245
10.0.17763.9245
Microsoft Windows 10 1607<10.0.14393.9512
Microsoft Windows 10 1607<10.0.14393.9512
Microsoft Windows 10 1809<10.0.17763.9245
Microsoft Windows 10 1809<10.0.17763.9245
Microsoft Windows 10 21h2<10.0.19044.7725
Microsoft Windows 10 21h2<10.0.19044.7725
Microsoft Windows 10 21h2<10.0.19044.7725
Microsoft Windows 10 22h2<10.0.19045.7725
Microsoft Windows 10 22h2<10.0.19045.7725
Microsoft Windows 10 22h2<10.0.19045.7725
Microsoft Windows 11 23h2<10.0.22631.7582
Microsoft Windows 11 23h2<10.0.22631.7582
Microsoft Windows 11 24h2<10.0.26100.9445
Microsoft Windows 11 24h2<10.0.26100.9445
Microsoft Windows 11 25h2<10.0.26200.9445
Microsoft Windows 11 25h2<10.0.26200.9445
Microsoft Windows 11 26h1<10.0.28000.2954
Microsoft Windows 11 26h1<10.0.28000.2954
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016<10.0.14393.9512
Microsoft Windows Server 2019<10.0.17763.9245
Microsoft Windows Server 2022<10.0.20348.5622
Microsoft Windows Server 2025<10.0.26100.33438

Event History

Sep 8, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·05:15 PM
Data Sourced
via MITRE·05:15 PM
DescriptionSeverity
Data Sourced
via NVD·06:19 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What level of access does an attacker need to exploit this issue?

The attack vector is physical, so an attacker needs physical access to the affected system or its storage media. No prior privileges or user interaction are required.

2

Which systems should be prioritized for triage?

Systems running the listed Windows 10, Windows 11, or affected Windows Server releases should be assessed, particularly devices that may be exposed to unauthorized physical access. The impact ratings indicate potential compromise of confidentiality, integrity, and availability.

3

How can exposure be reduced if updates cannot be applied immediately?

Limit unauthorized physical access to affected devices and storage media. Because exploitation is described as a physical attack, physical security controls are the available mitigation indicated by the provided data.

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