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Security releases

Microsoft

Windows Cloud Files Mini Filter Driver Tampering Vulnerability

CVE-2026-83991 Sep 8, 2026 Source: Vendor
Source of record The credited names below are quoted verbatim from the vendor's own advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83991
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Credited

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CVE-2026-83991 BR2026-0003-018272 unclaimed
Windows Cloud Files Mini Filter Driver Tampering Vulnerability
Credited as Karol Nieckarz with independent security research