CVE-2026-35416: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-35416) is a use-after-free issue categorized under CWE-416, caused by type confusion in the Windows Ancillary Function Driver for WinSock on Windows 10 Version 1607 (build 10.0.14393.0). An authorized local attacker can exploit this flaw to elevate privileges on the affected system. The CVSS v3.1 base score is 7.0, reflecting high severity with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher system rights. The vulnerability impacts confidentiality, integrity, and availability of the affected system components.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35416 to remediate this vulnerability.
CVE-2026-35416: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-35416) is a use-after-free issue categorized under CWE-416, caused by type confusion in the Windows Ancillary Function Driver for WinSock on Windows 10 Version 1607 (build 10.0.14393.0). An authorized local attacker can exploit this flaw to elevate privileges on the affected system. The CVSS v3.1 base score is 7.0, reflecting high severity with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher system rights. The vulnerability impacts confidentiality, integrity, and availability of the affected system components.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35416 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-02T19:21:11.804Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-35416","vendor":"Microsoft"}]
Threat ID: 6a036547cbff5d861008c636
Added to database: 05/12/2026, 17:37:11 UTC
Last enriched: 06/19/2026, 17:33:49 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 76
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