CVE-2026-44804: CWE-416: Use After Free in Microsoft Windows 11 version 26H1
Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-44804) 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). An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. Microsoft has published an official fix addressing this issue.
Potential Impact
Successful exploitation of this use-after-free vulnerability can result in local privilege escalation, granting the attacker higher system privileges than originally authorized. This could lead to full system compromise depending on the privileges gained.
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 detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44804.
CVE-2026-44804: CWE-416: Use After Free in Microsoft Windows 11 version 26H1
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
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 on Windows 11 version 26H1 (build 10.0.28000.0). An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. Microsoft has published an official fix addressing this issue.
Potential Impact
Successful exploitation of this use-after-free vulnerability can result in local privilege escalation, granting the attacker higher system privileges than originally authorized. This could lead to full system compromise depending on the privileges gained.
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 detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44804.
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: 06/09/2026, 17:26:38 UTC
Last enriched: 07/29/2026, 21:51:41 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 96
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