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CVE-2026-6683: FatFs exFAT Divide-by-Zero Crash

July 3, 2026

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A divide-by-zero in exFAT handling can crash or brick devices. CVSS 4.6 (Medium).

Discovered from: Seven Unpatched FatFs Flaws Expose Millions of Embedded Devices to Code Execution

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crashCVE-2026-6683divide-by-zeroexFATFatFs

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