CVE-2026-96865: CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere in Microsoft Windows 10 Version 1607
Description
CVE-2026-96865 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 and related builds that allows an authorized local attacker to disclose sensitive system information via Windows Secure Kernel Mode. The vulnerability involves exposure of sensitive information to an unauthorized control sphere. An official fix is available from Microsoft.
CVSS v3.1
Score 5.6medium
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-2026-96865) affects multiple builds of Microsoft Windows 10, including Version 1607 and later updates, where Windows Secure Kernel Mode improperly exposes sensitive system information to an unauthorized control sphere. The flaw requires local access with low privileges and high attack complexity, but no user interaction. The vulnerability impacts confidentiality but not integrity or availability. Microsoft has published an official fix addressing this issue.
Potential Impact
An authorized local attacker with low privileges can disclose sensitive system information due to improper exposure in Windows Secure Kernel Mode. This could lead to information disclosure that may aid further attacks. The vulnerability does not affect system integrity or availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96865 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-23T18:05:21.202Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96865","vendor":"Microsoft"}]
Threat ID: 6ace857f2cdf04f656a004b7
Added to database: 10/13/2026, 19:24:47 UTC
Last enriched: 10/14/2026, 00:03:54 UTC
Last updated: 10/14/2026, 00:03:54 UTC
Views: 2
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