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Seven New CVEs in FatFs Filesystem Driver Put Millions of Embedded and IoT Devices at Risk

6 July 2026  |  dark6  |  Vulnerability

runZero has disclosed seven new CVEs in FatFs, the FAT/exFAT filesystem driver used across ESP-IDF, STM32Cube, Zephyr, MicroPython, and countless other embedded platforms. The bugs range from CVSS...

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