CVE-2026-65788: CWE-416: Use After Free in Microsoft Windows 11 version 23H2
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the Desktop Window Manager of Windows 11 version 23H2 (build 10.0.22631.0). Exploiting this flaw could enable an attacker with local access and low privileges to elevate their privileges on the system. The vulnerability is tracked as CWE-416 and has been assigned CVE-2026-65788. 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 their privileges, potentially gaining higher-level access to the affected system. This could lead to full system compromise depending on the privileges obtained.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 11 version 23H2 (build 10.0.22631.0) as soon as possible. Refer to the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65788 for detailed patch information and deployment guidance.
CVE-2026-65788: CWE-416: Use After Free in Microsoft Windows 11 version 23H2
Description
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the Desktop Window Manager of Windows 11 version 23H2 (build 10.0.22631.0). Exploiting this flaw could enable an attacker with local access and low privileges to elevate their privileges on the system. The vulnerability is tracked as CWE-416 and has been assigned CVE-2026-65788. 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 their privileges, potentially gaining higher-level access to the affected system. This could lead to full system compromise depending on the privileges obtained.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 11 version 23H2 (build 10.0.22631.0) as soon as possible. Refer to the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65788 for detailed patch information and deployment guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-22T21:30:09.120Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65788","vendor":"Microsoft"}]
Threat ID: 6a7b5832bf8831d53915646b
Added to database: 08/11/2026, 17:13:22 UTC
Last enriched: 08/11/2026, 19:56:17 UTC
Last updated: 08/11/2026, 22:42:21 UTC
Views: 2
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