CVE-2026-96933: CWE-822: Untrusted Pointer Dereference in Microsoft Windows 10 Version 1607
Description
CVE-2026-96933 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 and related versions involving an untrusted pointer dereference in the Windows COM+ Event System Service. This flaw allows an authorized local attacker to elevate privileges. The vulnerability has an official fix available from Microsoft.
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 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-2026-96933) involves an untrusted pointer dereference in the Windows COM+ Event System Service on affected versions of Microsoft Windows 10 and some earlier versions. An authorized attacker with local access can exploit this flaw to elevate privileges, potentially gaining higher system rights. The CVSS v3.1 base score is 7.8, indicating high severity, with impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate privileges, potentially gaining administrative rights on the affected system. This can lead to full system compromise, including unauthorized access to sensitive data and disruption of system operations.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the available security updates as soon as possible to remediate the issue. No additional mitigation steps are indicated beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-23T20:30:01.468Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96933","vendor":"Microsoft"}]
Threat ID: 6ace85842cdf04f656a004d9
Added to database: 10/13/2026, 19:24:52 UTC
Last enriched: 10/13/2026, 23:48:32 UTC
Last updated: 10/13/2026, 23:48:32 UTC
Views: 3
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