CVE-2026-72930: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-72930 is a use-after-free vulnerability in the Windows Secure Socket Tunneling Protocol (SSTP) component affecting multiple builds of Microsoft Windows 10 Version 1607 and related versions. This flaw allows an authorized attacker with local access to execute arbitrary code on the affected system. The vulnerability has a high severity rating and has been officially fixed by Microsoft.
CVSS v3.1
Score 7.0high
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, tracked as CVE-2026-72930 and categorized under CWE-416 (Use After Free), exists in the Windows Secure Socket Tunneling Protocol (SSTP) implementation. It allows an attacker with local privileges to execute code by exploiting a use-after-free condition. The vulnerability affects multiple Windows 10 versions, including builds from 10.0.14393.0 up to but not including 10.0.14393.9512, and several other build ranges as specified. Microsoft has published an official fix for this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to execute arbitrary code with elevated privileges, potentially leading to full system compromise. The CVSS v3.1 base score is 7.0 (High), reflecting high impact on confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix from Microsoft is available and should be applied to affected systems. Administrators should consult the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72930 for update details and deploy the patches promptly to mitigate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-10T18:14:23.516Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72930","vendor":"Microsoft"}]
Threat ID: 6aa04542acd9273b49fa9c7b
Added to database: 09/08/2026, 17:26:26 UTC
Last enriched: 10/16/2026, 21:44:53 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 24
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