CVE-2026-69279: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Description
CVE-2026-69279 is a use-after-free vulnerability in the Windows Cloud Files Mini Filter Driver affecting Windows 10 Version 1809 and later builds. An authorized local attacker can exploit this flaw to elevate privileges. The vulnerability has a high severity rating and has been officially fixed by Microsoft.
CVSS v3.1
Score 7.0high
Affected software
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 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 involves a use-after-free condition in the Windows Cloud Files Mini Filter Driver component of Microsoft Windows 10 Version 1809 and later. Exploitation requires local access with limited privileges and allows an attacker to elevate their privileges on the affected system. The vulnerability has a CVSS 3.1 base score of 7.0, 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 authorized local attacker to elevate privileges, potentially gaining higher system rights. This can compromise system confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix from Microsoft is available and should be applied to affected systems. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69279 for patch details and update guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T20:44:03.597Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69279","vendor":"Microsoft"}]
Threat ID: 6aa044ddacd9273b49fa7d79
Added to database: 09/08/2026, 17:24:45 UTC
Last enriched: 10/16/2026, 20:59:29 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 24
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