CVE-2026-50458: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
CVE-2026-50458 is a use-after-free vulnerability in the Microsoft Brokering File System component of 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-2026-50458 is a use-after-free vulnerability (CWE-416) in the Microsoft Brokering File System on Windows 11 Version 24H2 (build 10.0.26100.0). It enables an authorized local attacker to elevate privileges by exploiting improper memory handling. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official patch to remediate this issue, as documented in their security update guide.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access to the system. This can lead to full system compromise, affecting confidentiality, integrity, and availability of the affected Windows 11 system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 11 Version 24H2 to remediate this vulnerability. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50458 for detailed patch information and deployment instructions.
CVE-2026-50458: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Description
CVE-2026-50458 is a use-after-free vulnerability in the Microsoft Brokering File System component of 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-2026-50458 is a use-after-free vulnerability (CWE-416) in the Microsoft Brokering File System on Windows 11 Version 24H2 (build 10.0.26100.0). It enables an authorized local attacker to elevate privileges by exploiting improper memory handling. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official patch to remediate this issue, as documented in their security update guide.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access to the system. This can lead to full system compromise, affecting confidentiality, integrity, and availability of the affected Windows 11 system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 11 Version 24H2 to remediate this vulnerability. Refer to the Microsoft security update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50458 for detailed patch information and deployment instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:59:17.977Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50458","vendor":"Microsoft"}]
Threat ID: 6a5676a268715ace43f09505
Added to database: 07/14/2026, 17:49:22 UTC
Last enriched: 07/14/2026, 23:32:30 UTC
Last updated: 07/14/2026, 23:32:30 UTC
Views: 4
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