CVE-2026-50306: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
CVE-2026-50306 is a use-after-free vulnerability in the Windows TCP/IP stack affecting Windows 10 Version 1607 (build 10.0.14393.0). This flaw allows an authorized local attacker to elevate privileges on the affected system. The vulnerability has a high severity rating with a CVSS score of 7.8. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50306) involves a use-after-free condition in the Windows TCP/IP implementation on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with some privileges and can lead to elevation of privileges, compromising confidentiality, integrity, and availability of the system. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access to the affected system. The vulnerability impacts confidentiality, integrity, and availability, as indicated by the CVSS vector. There are no known exploits in the wild at this time.
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-2026-50306 to remediate this vulnerability.
CVE-2026-50306: CWE-416: Use After Free in Microsoft Windows 10 Version 1607
Description
CVE-2026-50306 is a use-after-free vulnerability in the Windows TCP/IP stack affecting Windows 10 Version 1607 (build 10.0.14393.0). This flaw allows an authorized local attacker to elevate privileges on the affected system. The vulnerability has a high severity rating with a CVSS score of 7.8. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50306) involves a use-after-free condition in the Windows TCP/IP implementation on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with some privileges and can lead to elevation of privileges, compromising confidentiality, integrity, and availability of the system. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access to the affected system. The vulnerability impacts confidentiality, integrity, and availability, as indicated by the CVSS vector. There are no known exploits in the wild at this time.
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-2026-50306 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T17:30:16.975Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50306","vendor":"Microsoft"}]
Threat ID: 6a56768d68715ace43f08c0a
Added to database: 07/14/2026, 17:49:01 UTC
Last enriched: 07/15/2026, 00:47:53 UTC
Last updated: 07/15/2026, 00:47:53 UTC
Views: 2
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