CVE-2026-50501: CWE-121: Stack-based Buffer Overflow in Microsoft Windows 11 Version 24H2
CVE-2026-50501 is a stack-based buffer overflow vulnerability in the Windows Resilient File System (ReFS) component of Microsoft Windows 11 Version 24H2. This flaw allows an unauthorized local attacker to execute arbitrary code. The vulnerability has a high severity rating with a CVSS score of 7.8. An official patch is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability involves a stack-based buffer overflow in the Windows Resilient File System (ReFS) on Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation requires local access with user interaction but no privileges. Successful exploitation could lead to complete compromise of confidentiality, integrity, and availability of the affected system. Microsoft has released an official fix to remediate this vulnerability.
Potential Impact
An attacker with local access and the ability to interact with the system can exploit this vulnerability to execute arbitrary code with system privileges. This can lead to full system compromise, including unauthorized disclosure, modification, or destruction of data and disruption of system availability.
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-2026-50501 to remediate this vulnerability.
CVE-2026-50501: CWE-121: Stack-based Buffer Overflow in Microsoft Windows 11 Version 24H2
Description
CVE-2026-50501 is a stack-based buffer overflow vulnerability in the Windows Resilient File System (ReFS) component of Microsoft Windows 11 Version 24H2. This flaw allows an unauthorized local attacker to execute arbitrary code. The vulnerability has a high severity rating with a CVSS score of 7.8. An official patch 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 stack-based buffer overflow in the Windows Resilient File System (ReFS) on Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation requires local access with user interaction but no privileges. Successful exploitation could lead to complete compromise of confidentiality, integrity, and availability of the affected system. Microsoft has released an official fix to remediate this vulnerability.
Potential Impact
An attacker with local access and the ability to interact with the system can exploit this vulnerability to execute arbitrary code with system privileges. This can lead to full system compromise, including unauthorized disclosure, modification, or destruction of data and disruption of system availability.
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-2026-50501 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:53.337Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50501","vendor":"Microsoft"}]
Threat ID: 6a5676a768715ace43f09677
Added to database: 07/14/2026, 17:49:27 UTC
Last enriched: 07/14/2026, 23:02:41 UTC
Last updated: 07/15/2026, 03:27:31 UTC
Views: 2
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