CVE-2026-69406: CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere in Microsoft Windows 10 Version 1607
Description
CVE-2026-69406 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 due to exposure in the Windows Kernel. The vulnerability does not allow integrity or availability impact but can lead to confidentiality compromise. Official patches are available from Microsoft to address this issue.
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 Server 2012
Microsoft
Windows Server 2012 (Server Core installation)
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-2026-69406) involves exposure of sensitive system information to an unauthorized control sphere within the Windows Kernel in Windows 10 Version 1607 and other specified builds. An authorized attacker with local access can exploit this flaw to disclose sensitive information. The CVSS 3.1 base score is 5.5 (medium severity), reflecting local attack vector, low complexity, required privileges, no user interaction, and high confidentiality impact. Microsoft has released official fixes for affected versions.
Potential Impact
An authorized local attacker can disclose sensitive system information, potentially leading to confidentiality breaches. There is no impact on system integrity or availability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Microsoft has provided official fixes for this vulnerability. Users and administrators should apply the available patches as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69406 to remediate the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T20:57:58.963Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69406","vendor":"Microsoft"}]
Threat ID: 6aa044f3acd9273b49fa7fae
Added to database: 09/08/2026, 17:25:07 UTC
Last enriched: 10/16/2026, 21:10:12 UTC
Last updated: 10/24/2026, 03:05:10 UTC
Views: 31
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