CVE-2026-69401: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Description
CVE-2026-69401 is a use-after-free vulnerability in the Audio Video Control Transport Protocol component of Microsoft Windows 11 Version 24H2. It allows an authorized local attacker to elevate privileges. The vulnerability has a high severity rating with a CVSS score of 7. An official fix is available from Microsoft.
CVSS v3.1
Score 7.0high
Affected software
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-69401) involves a use-after-free condition in the Audio Video Control Transport Protocol on Windows 11 Version 24H2. Exploitation requires local authorization and can lead to privilege escalation. The CVSS v3.1 vector indicates that the attack requires local access with high attack complexity and low privileges, but results in high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate privileges on the affected Windows 11 Version 24H2 systems. This can lead to full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69401 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T20:57:58.963Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69401","vendor":"Microsoft"}]
Threat ID: 6aa044f2acd9273b49fa7f92
Added to database: 09/08/2026, 17:25:06 UTC
Last enriched: 10/16/2026, 21:09:44 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 22
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