CVE-2026-50305: 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). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could result in full confidentiality, integrity, and availability impact, allowing privilege escalation. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker could exploit this use-after-free vulnerability to elevate privileges, potentially gaining higher system rights. The CVSS score of 7.8 indicates a high impact on confidentiality, integrity, and availability if exploited.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided in the Microsoft security update for CVE-2026-50305 as soon as possible to mitigate this vulnerability.
CVE-2026-50305: 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). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could result in full confidentiality, integrity, and availability impact, allowing privilege escalation. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker could exploit this use-after-free vulnerability to elevate privileges, potentially gaining higher system rights. The CVSS score of 7.8 indicates a high impact on confidentiality, integrity, and availability if exploited.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the patch provided in the Microsoft security update for CVE-2026-50305 as soon as possible to mitigate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T17:30:16.975Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50305","vendor":"Microsoft"}]
Threat ID: 6a56768d68715ace43f08c07
Added to database: 07/14/2026, 17:49:01 UTC
Last enriched: 08/13/2026, 14:30:16 UTC
Last updated: 08/25/2026, 22:52:12 UTC
Views: 48
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