CVE-2026-44807: CWE-416: Use After Free in Microsoft Windows 11 version 26H1
CVE-2026-44807 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-2026-44807) involves a use-after-free condition in the Windows Desktop Window Manager (DWM) Core Library on Windows 11 version 26H1 (build 10.0.28000.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could allow an attacker to elevate their privileges on the affected system. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker could exploit this use-after-free vulnerability to elevate privileges, potentially gaining higher-level access than intended. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H). No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44807 to remediate this vulnerability.
CVE-2026-44807: CWE-416: Use After Free in Microsoft Windows 11 version 26H1
Description
CVE-2026-44807 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-2026-44807) involves a use-after-free condition in the Windows Desktop Window Manager (DWM) Core Library on Windows 11 version 26H1 (build 10.0.28000.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could allow an attacker to elevate their privileges on the affected system. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker could exploit this use-after-free vulnerability to elevate privileges, potentially gaining higher-level access than intended. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H). No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44807 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-2026-44807","vendor":"Microsoft"}]
Threat ID: 6a284cce8dd33fbd85664a09
Added to database: 6/9/2026, 5:26:38 PM
Last enriched: 6/9/2026, 10:42:16 PM
Last updated: 6/10/2026, 4:58:29 AM
Views: 3
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