CVE-2026-50396: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in Windows Kernel-Mode Drivers on Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation requires local access with authorized privileges and can lead to privilege escalation. The CVSS 3.1 vector indicates high attack complexity and privileges required, with no user interaction needed. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges, potentially gaining higher system rights. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS impact metrics (High for all three). There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 11 Version 24H2 (build 10.0.26100.0) as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50396.
CVE-2026-50396: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Description
Use after free in Windows Kernel-Mode Drivers 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 involves a use-after-free condition in Windows Kernel-Mode Drivers on Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation requires local access with authorized privileges and can lead to privilege escalation. The CVSS 3.1 vector indicates high attack complexity and privileges required, with no user interaction needed. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges, potentially gaining higher system rights. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS impact metrics (High for all three). There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 11 Version 24H2 (build 10.0.26100.0) as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50396.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:55:14.746Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50396","vendor":"Microsoft"}]
Threat ID: 6a56769868715ace43f08e68
Added to database: 07/14/2026, 17:49:12 UTC
Last enriched: 08/13/2026, 14:47:14 UTC
Last updated: 08/25/2026, 22:52:12 UTC
Views: 65
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