Summary
Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
What privileges could be gained by an attacker who successfully exploited the vulnerability?
An attacker who successfully exploited this vulnerability could gain administrator privileges.
Security updates
10.0.26100.32690 — https://support.microsoft.com/help/5082063
10.0.26200.8246 — https://support.microsoft.com/help/5083769
10.0.22631.6936 — https://support.microsoft.com/help/5082052
10.0.25398.2274 — https://support.microsoft.com/help/5082060
10.0.28000.1836 — https://support.microsoft.com/help/5083768
Vulnerabilities 1
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High 7.8
Microsoft Brokering File System Elevation of Privilege Vulnerability
Use after free in Microsoft Brokering File System allows an authorized attacker to elevate privileges locally.
Revision history
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#1
Information published.
References
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CVE-2026-26181 Microsoft Brokering File System Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26181
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss