CVE-2026-97789: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-97789 is a use-after-free vulnerability in the Remote Desktop Client component of Microsoft Windows 10 Version 1607 and related builds. This flaw allows an unauthorized attacker to execute code remotely over a network. The vulnerability has a high severity rating with a CVSS score of 7.5. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 7.5high
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 11 Version 26H2
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, tracked as CVE-2026-97789, involves a use-after-free condition in the Remote Desktop Client on Microsoft Windows 10 Version 1607 and other specified builds. Exploitation could allow an attacker to execute arbitrary code remotely without privileges, although user interaction is required. The CVSS 3.1 vector indicates network attack vector, high attack complexity, no privileges required, user interaction required, unchanged scope, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation of this use-after-free vulnerability can lead to remote code execution by an unauthorized attacker over a network. This could result in full compromise of affected systems, including complete control over confidentiality, integrity, and availability of the system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97789 to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-25T04:32:19.232Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97789","vendor":"Microsoft"}]
Threat ID: 6ace85942cdf04f656a018e7
Added to database: 10/13/2026, 19:25:08 UTC
Last enriched: 10/13/2026, 22:49:32 UTC
Last updated: 10/14/2026, 03:28:19 UTC
Views: 2
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