CVE-2026-49162: 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 (CVE-2026-49162) 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 privileges on the affected system. The CVSS v3.1 vector indicates the attack requires local access with high attack complexity and low privileges but no user interaction. Confidentiality, integrity, and availability impacts are all high. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate their privileges, potentially gaining higher system rights. This can lead to full system compromise depending on the elevated privileges obtained.
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-2026-49162 to remediate this vulnerability.
CVE-2026-49162: 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 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-49162) 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 privileges on the affected system. The CVSS v3.1 vector indicates the attack requires local access with high attack complexity and low privileges but no user interaction. Confidentiality, integrity, and availability impacts are all high. Microsoft has published an official fix for this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate their privileges, potentially gaining higher system rights. This can lead to full system compromise depending on the elevated privileges obtained.
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-2026-49162 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-27T23:44:09.622Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49162","vendor":"Microsoft"}]
Threat ID: 6a566f6a68715ace43e6b3a8
Added to database: 07/14/2026, 17:18:34 UTC
Last enriched: 08/13/2026, 14:19:40 UTC
Last updated: 08/26/2026, 22:52:11 UTC
Views: 64
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