CVE-2026-32091: Microsoft Brokering File System Elevation of Privilege Vulnerability
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.
Other sources
Microsoft Brokering File System Elevation of Privilege Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.28000.1836Patch KB5083768 - Upgrade
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Fixed in 10.0.14393.9060Patch KB5082198 - Upgrade
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Fixed in 10.0.25398.2274Patch KB5082060 - Upgrade
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Fixed in 10.0.26100.8246Patch KB5083769 - Upgrade
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Fixed in 10.0.26100.32690Patch KB5082063 - Upgrade
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Fixed in 10.0.26200.8246Patch KB5083769 - Upgrade
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Fixed in 10.0.19045.7184Patch KB5082200 - Upgrade
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Fixed in 10.0.22631.6936Patch KB5082052 - Upgrade
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Fixed in 10.0.19044.7184Patch KB5082200 - Upgrade
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Fixed in 10.0.17763.8644Patch KB5082123 - Upgrade
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Fixed in 10.0.20348.5020Patch KB5082142
Event History
Frequently Asked Questions
What is the severity of CVE-2026-32091?
CVE-2026-32091 is classified as an elevation of privilege vulnerability which allows attackers to elevate their privileges locally.
How do I fix CVE-2026-32091?
To fix CVE-2026-32091, ensure you apply the latest security patches provided by Microsoft.
Which Windows versions are affected by CVE-2026-32091?
CVE-2026-32091 affects various versions including Windows 10, Windows 11, and Windows Server 2016, 2019, and 2022.
Can CVE-2026-32091 be exploited remotely?
CVE-2026-32091 requires local access to the system for exploitation, thereby limiting the scope of potential attacks.
What type of attack is associated with CVE-2026-32091?
CVE-2026-32091 is associated with a race condition vulnerability, allowing unauthorized privilege escalation.