CVE-2026-50466: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
CVE-2026-50466 is a use-after-free vulnerability in the Windows Brokering File System component of Microsoft Windows 11 Version 24H2. 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
CVE-2026-50466 is a use-after-free vulnerability (CWE-416) in the Windows Brokering File System on Microsoft Windows 11 Version 24H2 (build 10.0.26100.0). This vulnerability enables an attacker with local authorized access to elevate their privileges by exploiting improper memory management. The vulnerability has been assigned a CVSS v3.1 base score of 7.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate privileges on the affected Windows 11 system. This could lead to full system compromise, including unauthorized access to sensitive data and the ability to execute code with elevated rights. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided by Microsoft as soon as possible to remediate this issue. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50466 for detailed patching instructions.
CVE-2026-50466: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Description
CVE-2026-50466 is a use-after-free vulnerability in the Windows Brokering File System component of Microsoft Windows 11 Version 24H2. 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
CVE-2026-50466 is a use-after-free vulnerability (CWE-416) in the Windows Brokering File System on Microsoft Windows 11 Version 24H2 (build 10.0.26100.0). This vulnerability enables an attacker with local authorized access to elevate their privileges by exploiting improper memory management. The vulnerability has been assigned a CVSS v3.1 base score of 7.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate privileges on the affected Windows 11 system. This could lead to full system compromise, including unauthorized access to sensitive data and the ability to execute code with elevated rights. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided by Microsoft as soon as possible to remediate this issue. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50466 for detailed patching instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:17.978Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50466","vendor":"Microsoft"}]
Threat ID: 6a5676a368715ace43f09576
Added to database: 07/14/2026, 17:49:23 UTC
Last enriched: 07/14/2026, 23:19:13 UTC
Last updated: 07/14/2026, 23:19:13 UTC
Views: 2
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