CVE-2026-50458: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the Microsoft Brokering File System on Windows 11 Version 24H2 (build 10.0.26100.0). An authorized attacker with local access can exploit this flaw to elevate their privileges on the system. The vulnerability is tracked as CWE-416 and has a CVSS v3.1 score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access to the affected system. This can compromise system confidentiality, integrity, and 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-2026-50458 to remediate this vulnerability.
CVE-2026-50458: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Description
Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the Microsoft Brokering File System on Windows 11 Version 24H2 (build 10.0.26100.0). An authorized attacker with local access can exploit this flaw to elevate their privileges on the system. The vulnerability is tracked as CWE-416 and has a CVSS v3.1 score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access to the affected system. This can compromise system confidentiality, integrity, and 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-2026-50458 to remediate this vulnerability.
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: 08/13/2026, 14:58:07 UTC
Last updated: 08/28/2026, 19:39:44 UTC
Views: 73
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