CVE-2026-69479: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
CVE-2026-69479 is a heap-based buffer overflow vulnerability in the NTFS component of Microsoft Windows 10 Version 1607 and related builds. This flaw allows an unauthorized local attacker to execute arbitrary code with high impact on confidentiality, integrity, and availability. The vulnerability affects multiple Windows 10 versions prior to specific patched builds. A patch is officially available from Microsoft to address this issue.
CVSS v3.1
Score 8.4high
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2012
Microsoft
Windows Server 2012 (Server Core installation)
Microsoft
Windows Server 2012 R2
Microsoft
Windows Server 2012 R2 (Server Core installation)
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-69479) is a heap-based buffer overflow in the Windows NTFS file system driver. It enables an unauthorized attacker to execute code locally on affected Windows 10 systems. The flaw impacts multiple Windows 10 versions, including builds starting from 10.0.14393.0 up to but excluding patched builds such as 10.0.14393.9512 and others listed. The CVSS v3.1 score is 8.4, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation allows an unauthorized local attacker to execute arbitrary code, potentially leading to full system compromise. The vulnerability affects confidentiality, integrity, and availability of the system. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft for the affected Windows 10 versions as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69479.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T21:07:24.908Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69479","vendor":"Microsoft"}]
Threat ID: 6aa04500acd9273b49fa8109
Added to database: 09/08/2026, 17:25:20 UTC
Last enriched: 10/16/2026, 21:15:41 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 27
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