CVE-2026-50357: CWE-197: Numeric Truncation Error in Microsoft Windows 10 Version 1607
CVE-2026-50357 is a numeric truncation error vulnerability in the Windows Resilient File System (ReFS) on Windows 10 Version 1607 (build 10.0.14393.0). This flaw allows an authorized local attacker to execute code 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 involves a numeric truncation error in the Windows Resilient File System (ReFS) component of Windows 10 Version 1607. Exploitation requires local privileges and no user interaction. Successful exploitation could lead to high-impact consequences including full confidentiality, integrity, and availability compromise through local code execution. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this numeric truncation error to execute arbitrary code on the affected system, potentially leading to complete system compromise including full confidentiality, integrity, and availability impact.
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-2026-50357 to remediate this vulnerability.
CVE-2026-50357: CWE-197: Numeric Truncation Error in Microsoft Windows 10 Version 1607
Description
CVE-2026-50357 is a numeric truncation error vulnerability in the Windows Resilient File System (ReFS) on Windows 10 Version 1607 (build 10.0.14393.0). This flaw allows an authorized local attacker to execute code 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 involves a numeric truncation error in the Windows Resilient File System (ReFS) component of Windows 10 Version 1607. Exploitation requires local privileges and no user interaction. Successful exploitation could lead to high-impact consequences including full confidentiality, integrity, and availability compromise through local code execution. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this numeric truncation error to execute arbitrary code on the affected system, potentially leading to complete system compromise including full confidentiality, integrity, and availability impact.
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-2026-50357 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:48:26.815Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50357","vendor":"Microsoft"}]
Threat ID: 6a56769368715ace43f08d1b
Added to database: 07/14/2026, 17:49:07 UTC
Last enriched: 07/15/2026, 00:19:19 UTC
Last updated: 07/15/2026, 00:19:19 UTC
Views: 2
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