CVE-2024-38253: CWE-416: Use After Free in Microsoft Windows 11 version 21H2
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
AI Analysis
Technical Summary
This vulnerability, tracked as CVE-2024-38253 and classified under CWE-416 (Use After Free), exists in the Windows Win32 Kernel Subsystem of Microsoft Windows 11 version 21H2. It allows an attacker with local access and low privileges to elevate their privileges due to improper handling of kernel memory. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with local access and low privileges to elevate their privileges to a higher level, potentially leading to full system compromise. The impact includes complete loss of confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38253 to remediate this vulnerability.
CVE-2024-38253: CWE-416: Use After Free in Microsoft Windows 11 version 21H2
Description
Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, tracked as CVE-2024-38253 and classified under CWE-416 (Use After Free), exists in the Windows Win32 Kernel Subsystem of Microsoft Windows 11 version 21H2. It allows an attacker with local access and low privileges to elevate their privileges due to improper handling of kernel memory. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with local access and low privileges to elevate their privileges to a higher level, potentially leading to full system compromise. The impact includes complete loss of confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38253 to remediate this vulnerability.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- microsoft
- Date Reserved
- 2024-06-11T22:36:08.234Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38253","vendor":"Microsoft"}]
Threat ID: 699f6c78b7ef31ef0b564bbf
Added to database: 02/25/2026, 21:41:12 UTC
Last enriched: 08/11/2026, 15:53:24 UTC
Last updated: 09/10/2026, 19:36:48 UTC
Views: 71
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