CVE-2026-25167: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Use after free in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-25167) involves a use-after-free condition in the Microsoft Brokering File System on Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation of this flaw could enable a local attacker without privileges to elevate their permissions. The vulnerability is classified under CWE-416 (Use After Free). Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation allows an unauthorized local attacker to elevate privileges, potentially gaining higher-level access to the affected Windows 11 system. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H). There are no known exploits in the wild at this time.
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-2026-25167 to remediate this vulnerability.
CVE-2026-25167: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Description
Use after free in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.4high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-25167) involves a use-after-free condition in the Microsoft Brokering File System on Windows 11 Version 24H2 (build 10.0.26100.0). Exploitation of this flaw could enable a local attacker without privileges to elevate their permissions. The vulnerability is classified under CWE-416 (Use After Free). Microsoft has published an official fix to remediate this issue.
Potential Impact
Successful exploitation allows an unauthorized local attacker to elevate privileges, potentially gaining higher-level access to the affected Windows 11 system. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H). There are no known exploits in the wild at this time.
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-2026-25167 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-01-29T18:36:49.695Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25167","vendor":"Microsoft"}]
Threat ID: 69b0562cea502d3aa87d69e0
Added to database: 03/10/2026, 17:34:36 UTC
Last enriched: 06/19/2026, 20:27:32 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 153
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