CVE-2026-49792: CWE-197: Numeric Truncation Error in Microsoft Windows 10 Version 1607
CVE-2026-49792 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 with elevated privileges. 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. The flaw can be exploited by an authorized local attacker to execute arbitrary code, potentially leading to full system compromise. The vulnerability is tracked as CVE-2026-49792 and is classified under CWE-197 (Numeric Truncation Error). Microsoft has released an official patch to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to execute code on the affected system, resulting in high impact on confidentiality, integrity, and availability. This could lead to full system compromise or unauthorized actions performed with elevated privileges.
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-2026-49792 to remediate this vulnerability.
CVE-2026-49792: CWE-197: Numeric Truncation Error in Microsoft Windows 10 Version 1607
Description
CVE-2026-49792 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 with elevated privileges. 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. The flaw can be exploited by an authorized local attacker to execute arbitrary code, potentially leading to full system compromise. The vulnerability is tracked as CVE-2026-49792 and is classified under CWE-197 (Numeric Truncation Error). Microsoft has released an official patch to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to execute code on the affected system, resulting in high impact on confidentiality, integrity, and availability. This could lead to full system compromise or unauthorized actions performed with elevated privileges.
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-2026-49792 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-01T17:02:37.207Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49792","vendor":"Microsoft"}]
Threat ID: 6a566f6d68715ace43e6b548
Added to database: 07/14/2026, 17:18:37 UTC
Last enriched: 07/15/2026, 01:47:26 UTC
Last updated: 07/15/2026, 01:47:26 UTC
Views: 4
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