CVE-2026-44802: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the Windows Desktop Window Manager (DWM) Core Library. An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The issue impacts Windows 10 Version 1809, specifically build 10.0.17763.0. Microsoft has released an official fix addressing this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access to the affected system. The vulnerability impacts confidentiality, integrity, and availability with high severity as indicated by the CVSS score of 7.8.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44802 for detailed patching instructions.
CVE-2026-44802: CWE-416: Use After Free in Microsoft Windows 10 Version 1809
Description
Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the Windows Desktop Window Manager (DWM) Core Library. An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The issue impacts Windows 10 Version 1809, specifically build 10.0.17763.0. Microsoft has released an official fix addressing this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access to the affected system. The vulnerability impacts confidentiality, integrity, and availability with high severity as indicated by the CVSS score of 7.8.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44802 for detailed patching 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-2026-44802","vendor":"Microsoft"}]
Threat ID: 6a284cce8dd33fbd856649fd
Added to database: 06/09/2026, 17:26:38 UTC
Last enriched: 08/14/2026, 13:25:28 UTC
Last updated: 09/14/2026, 22:01:34 UTC
Views: 61
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