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CVE-2026-34337

Windows Cloud Files Mini Filter Driver Elevation of Privilege vulnerability

Microsoft

MSRC advisory May 12, 2026

Alert details

Source feed
Microsoft MSRC
CVE ID
CVE-2026-34337
Affected products
Windows Cloud Files Mini Filter Driver Elevation of Privilege · Microsoft Windows Cloud Files Mini Filter Driver Elevation of Privilege · Microsoft

What happened

Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.

What it means for your business

Windows Cloud Files Mini Filter Driver Elevation of Privilege vulnerability (CVE-2026-34337) was added to Microsoft’s security update guidance. Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.

EPSS probability

0.16%

Sources

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Need help patching?

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