CVE-2026-96315: CWE-862: Missing Authorization in Microsoft Windows 10 Version 1607
Description
CVE-2026-96315 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 involving missing authorization in the Windows Overlay Filter. This flaw allows an authorized local attacker to perform tampering actions without proper authorization. The vulnerability affects multiple Windows 10 builds prior to specific patched versions. An official fix is available from Microsoft.
CVSS v3.1
Score 5.5medium
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
CVE-2026-96315 describes a missing authorization vulnerability (CWE-862) in the Windows Overlay Filter component of Microsoft Windows 10 Version 1607. This vulnerability enables an attacker with local authorized access to tamper with system components due to insufficient authorization checks. The CVSS 3.1 base score is 5.5, indicating medium severity, with an attack vector requiring local access and low privileges but no user interaction. Multiple Windows 10 versions are affected, with patches released to address the issue. Microsoft has published an official advisory and fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this vulnerability to perform tampering actions on the affected Windows 10 systems. The vulnerability does not impact confidentiality or availability but allows integrity compromise. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft for the affected Windows 10 versions. Users and administrators should apply the security updates provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96315 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-22T22:31:49.522Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96315","vendor":"Microsoft"}]
Threat ID: 6ace85792cdf04f656a0048d
Added to database: 10/13/2026, 19:24:41 UTC
Last enriched: 10/14/2026, 00:19:48 UTC
Last updated: 10/14/2026, 00:19:48 UTC
Views: 2
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