CVE-2026-44804: CWE-416: Use After Free in Microsoft Windows 11 version 26H1
CVE-2026-44804 is a use-after-free vulnerability in the Windows DWM Core Library affecting Windows 11 version 26H1 (build 10. 0. 28000. 0). This flaw allows an authorized local attacker to elevate privileges. The vulnerability has a high severity with a CVSS score of 7. 8. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-44804) involves a use-after-free condition in the Windows Desktop Window Manager (DWM) Core Library in Windows 11 version 26H1 (build 10.0.28000.0). Exploiting this flaw enables an authorized local attacker to elevate their privileges on the affected system. The issue is tracked under CWE-416 (Use After Free). Microsoft has published an official fix addressing this vulnerability.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access than intended. The vulnerability impacts confidentiality, integrity, and availability, all rated as high impact according to the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 11 version 26H1 (build 10.0.28000.0) as soon as possible to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44804 for detailed update instructions.
CVE-2026-44804: CWE-416: Use After Free in Microsoft Windows 11 version 26H1
Description
CVE-2026-44804 is a use-after-free vulnerability in the Windows DWM Core Library affecting Windows 11 version 26H1 (build 10. 0. 28000. 0). This flaw allows an authorized local attacker to elevate privileges. The vulnerability has a high severity with a CVSS score of 7. 8. An official fix is available from Microsoft.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-44804) involves a use-after-free condition in the Windows Desktop Window Manager (DWM) Core Library in Windows 11 version 26H1 (build 10.0.28000.0). Exploiting this flaw enables an authorized local attacker to elevate their privileges on the affected system. The issue is tracked under CWE-416 (Use After Free). Microsoft has published an official fix addressing this vulnerability.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access than intended. The vulnerability impacts confidentiality, integrity, and availability, all rated as high impact according to the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 11 version 26H1 (build 10.0.28000.0) as soon as possible to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44804 for detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-07T20:07:18.270Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44804","vendor":"Microsoft"}]
Threat ID: 6a284cce8dd33fbd85664a03
Added to database: 6/9/2026, 5:26:38 PM
Last enriched: 6/9/2026, 10:42:29 PM
Last updated: 6/10/2026, 5:00:54 AM
Views: 32
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