CVE-2026-44809: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
CVE-2026-44809 is a use-after-free vulnerability in the Windows Common Log File System Driver affecting Windows 11 Version 24H2. This flaw allows an authorized local attacker to elevate privileges on the affected system. The vulnerability has a high severity with a CVSS score of 7. 8. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-44809) involves a use-after-free condition in the Windows Common Log File System Driver in Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could lead to elevation of privileges, granting the attacker higher system rights. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected Windows 11 Version 24H2 system. This could allow the attacker to execute code with higher privileges, potentially compromising system integrity, confidentiality, and availability.
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-2026-44809 to remediate this vulnerability.
CVE-2026-44809: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Description
CVE-2026-44809 is a use-after-free vulnerability in the Windows Common Log File System Driver affecting Windows 11 Version 24H2. This flaw allows an authorized local attacker to elevate privileges on the affected system. The vulnerability has a high severity with a CVSS score of 7. 8. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-44809) involves a use-after-free condition in the Windows Common Log File System Driver in Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could lead to elevation of privileges, granting the attacker higher system rights. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate their privileges on the affected Windows 11 Version 24H2 system. This could allow the attacker to execute code with higher privileges, potentially compromising system integrity, confidentiality, and availability.
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-2026-44809 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-07T20:07:18.271Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44809","vendor":"Microsoft"}]
Threat ID: 6a284cce8dd33fbd85664a0f
Added to database: 6/9/2026, 5:26:38 PM
Last enriched: 6/9/2026, 10:42:04 PM
Last updated: 6/10/2026, 4:58:56 AM
Views: 18
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