CVE-2026-96854: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') in Microsoft Windows 10 Version 1607
Description
CVE-2026-96854 is a medium severity vulnerability in Microsoft Windows 10 Version 1607 and related builds. It involves a type confusion flaw in the Windows Device Association Service that allows an authorized local attacker to disclose sensitive information. The vulnerability has an official fix 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 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 is an access of resource using incompatible type (type confusion) in the Windows Device Association Service on Microsoft Windows 10 Version 1607 and other specified builds. An authorized attacker with local access can exploit this flaw to disclose information. The CVSS 3.1 base score is 5.5, reflecting a medium severity with high confidentiality impact but no integrity or availability impact. The vulnerability requires low attack complexity and privileges, with no user interaction needed. Microsoft has published an official fix for this issue.
Potential Impact
An authorized local attacker can exploit this type confusion vulnerability to disclose sensitive information on affected Windows 10 systems. There is no impact on system integrity or availability. The confidentiality impact is high, meaning sensitive data could be exposed.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the security updates provided by Microsoft to affected Windows 10 versions as soon as possible to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-23T18:05:21.201Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96854","vendor":"Microsoft"}]
Threat ID: 6ace857d2cdf04f656a004aa
Added to database: 10/13/2026, 19:24:45 UTC
Last enriched: 10/14/2026, 00:04:42 UTC
Last updated: 10/14/2026, 00:04:42 UTC
Views: 3
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