CVE-2026-69579: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-69579 is a critical use-after-free vulnerability in Windows Message Queuing on Microsoft Windows 10 Version 1607 and other specified versions. This flaw allows an unauthorized attacker to execute code remotely over a network without requiring user interaction. The vulnerability has a CVSS score of 9.8, indicating high impact on confidentiality, integrity, and availability. An official fix is available from Microsoft.
CVSS v3.1
Score 9.8critical
Affected software
Microsoft
Windows 10 Version 1607
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 2012
Microsoft
Windows Server 2012 (Server Core installation)
Microsoft
Windows Server 2012 R2
Microsoft
Windows Server 2012 R2 (Server Core installation)
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
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 (CWE-416) involves a use-after-free condition in the Windows Message Queuing component of Microsoft Windows 10 Version 1607 and other specified builds. Exploitation allows remote code execution by an unauthenticated attacker over the network. The vulnerability affects multiple Windows 10 builds identified by specific version ranges. Microsoft has published an official fix for this issue.
Potential Impact
Successful exploitation can lead to remote code execution with full system privileges, compromising confidentiality, integrity, and availability of the affected system. The attacker does not require any privileges or user interaction to exploit this vulnerability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft as soon as possible to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69579 for update details.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T21:18:49.122Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69579","vendor":"Microsoft"}]
Threat ID: 6aa04512acd9273b49fa9656
Added to database: 09/08/2026, 17:25:38 UTC
Last enriched: 10/16/2026, 21:22:28 UTC
Last updated: 10/22/2026, 13:15:23 UTC
Views: 46
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