CVE-2026-69274: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-69274 is a use-after-free vulnerability in the Windows Win32K component affecting multiple versions of Microsoft Windows 10, including version 1607 and later builds. This flaw allows an authorized attacker to elevate privileges over a network. The vulnerability has a high severity rating with a CVSS score of 7.1. An official fix is available from Microsoft.
CVSS v3.1
Score 7.1high
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 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-2026-69274) involves a use-after-free condition in the Windows Win32K subsystem. An authorized attacker can exploit this flaw remotely to elevate privileges on affected Windows 10 systems. The vulnerability affects multiple Windows 10 versions starting from build 10.0.14393.0 up to but not including various patched builds (e.g., <10.0.14393.9512, <10.0.17763.9245, <10.0.19044.7725, etc.). Microsoft has released official patches addressing this issue.
Potential Impact
Successful exploitation allows an attacker with limited privileges and remote network access to elevate their privileges, potentially gaining full control over the affected system. The vulnerability impacts confidentiality, integrity, and availability (all rated high in CVSS). 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 in the Microsoft advisory to affected Windows 10 versions to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official patches.
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-2026-69274","vendor":"Microsoft"}]
Threat ID: 6aa044ddacd9273b49fa7d71
Added to database: 09/08/2026, 17:24:45 UTC
Last enriched: 10/16/2026, 20:59:05 UTC
Last updated: 10/24/2026, 03:05:10 UTC
Views: 25
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