CVE-2026-32091

moderate-risk

Published 2026-04-14

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Brokering File System allows an unauthorized attacker to elevate privileges locally.

Do I need to act?

0.04% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.4/10 High

LOCAL / LOW complexity

Affected Products (20)

Windows 10 1607

Windows 10 1809

Windows 10 21H2

Windows 10 22H2

Windows 11 23H2

Windows 11 24H2

Windows 11 25H2

Windows 11 26H1

Windows Server 2016

Windows Server 2019

Affected Vendors

Microsoft

References (1)

Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32091

/ 100

moderate-risk

Severity 26/34 · High

Exploitability 0/34 · Minimal

Exposure 21/34 · High