CVE-2026-96244: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-96244 is a use-after-free vulnerability in the Windows Internal System User Profile component of Microsoft Windows 10 Version 1607 and related builds. This flaw allows an authorized local attacker to elevate privileges on the affected system. The vulnerability has a high severity rating with a CVSS score of 7.8. Microsoft has released an official fix to address this issue.
CVSS v3.1
Score 7.8high
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 11 Version 26H2
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-2026-96244) involves a use-after-free condition in the Windows Internal System User Profile component, which can be exploited by an authorized local attacker to elevate privileges. The affected software includes multiple builds of Windows 10 Version 1607 and related versions as specified. The CVSS 3.1 base score is 7.8, indicating high severity, with attack vector local, low attack complexity, and no user interaction required. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges, potentially gaining higher-level access on the affected Windows 10 systems. The vulnerability impacts confidentiality, integrity, and availability, all rated high in the CVSS vector.
Mitigation Recommendations
Microsoft has released an official fix for CVE-2026-96244. Users and administrators should apply the provided security updates from Microsoft promptly to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96244 for update details and guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-22T19:05:22.814Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96244","vendor":"Microsoft"}]
Threat ID: 6ace85732cdf04f656a0044b
Added to database: 10/13/2026, 19:24:35 UTC
Last enriched: 10/14/2026, 00:34:33 UTC
Last updated: 10/14/2026, 00:34:33 UTC
Views: 4
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