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CISA Warns of Windows Cloud Files Mini Filter 0-Day Exploitation

First seen 12 Dec 2025, 18:53 UTC • •

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ThreatCluster •March 12, 2026 at 13:27 UTC

The Cybersecurity and Infrastructure Security Agency (CISA) has issued an alert regarding a critical privilege escalation vulnerability in Microsoft Windows related to the Cloud Files Mini Filter. This vulnerability is currently being actively exploited, affecting users of the Windows operating system. Details on the specific nature of the exploit and its impact have not been disclosed.

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