CVE-2026-73009: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-73009) is a use-after-free condition in the Windows SSTP implementation in Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could allow remote code execution by an unauthenticated attacker over the network. The vulnerability is classified under CWE-416 (Use After Free). Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code remotely with no privileges required and no user interaction, potentially leading to full system compromise. The CVSS v3.1 score of 9.8 reflects critical impact on confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73009 to remediate this vulnerability.
CVE-2026-73009: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-73009) is a use-after-free condition in the Windows SSTP implementation in Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could allow remote code execution by an unauthenticated attacker over the network. The vulnerability is classified under CWE-416 (Use After Free). Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code remotely with no privileges required and no user interaction, potentially leading to full system compromise. The CVSS v3.1 score of 9.8 reflects critical impact on confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73009 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-10T18:43:43.199Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73009","vendor":"Microsoft"}]
Threat ID: 6aa04550acd9273b49fa9e1e
Added to database: 09/08/2026, 17:26:40 UTC
Last enriched: 09/08/2026, 23:07:23 UTC
Last updated: 09/08/2026, 23:53:30 UTC
Views: 2
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