Critical CVEs CVE-2026-6685: FatFs Cache Handling Math Wrap on Fragmented Volumes July 3, 2026 ♡Follow0 A math wrap in FatFs cache handling on fragmented volumes can silently corrupt data. CVSS 6.1 (Medium). Discovered from: Seven Unpatched FatFs Flaws Expose Millions of Embedded Devices to Code Execution cacheCVE-2026-6685data corruptionFatFsfragmented