CVE-2026-50393: 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, identified as CWE-416 (Use After Free), exists in Windows Kernel-Mode Drivers on Windows 11 Version 24H2 (build 10.0.26100.0). It allows a local attacker with authorized access to exploit the use-after-free condition to elevate privileges on the affected system. The vulnerability has been assigned CVE-2026-50393 and has a CVSS v3.1 base score of 7.0, indicating high severity. Microsoft has released 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-level access on the affected Windows 11 system. This could lead to full system compromise depending on the attacker's goals and environment.
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 soon as possible to remediate this vulnerability.
CVE-2026-50393: 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, identified as CWE-416 (Use After Free), exists in Windows Kernel-Mode Drivers on Windows 11 Version 24H2 (build 10.0.26100.0). It allows a local attacker with authorized access to exploit the use-after-free condition to elevate privileges on the affected system. The vulnerability has been assigned CVE-2026-50393 and has a CVSS v3.1 base score of 7.0, indicating high severity. Microsoft has released 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-level access on the affected Windows 11 system. This could lead to full system compromise depending on the attacker's goals and environment.
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 soon as possible to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:55:14.745Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50393","vendor":"Microsoft"}]
Threat ID: 6a56769868715ace43f08e62
Added to database: 07/14/2026, 17:49:12 UTC
Last enriched: 08/13/2026, 14:46:50 UTC
Last updated: 08/25/2026, 22:52:12 UTC
Views: 67
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