https://hackingpassion.com/tags/firmware-security/Recent content in Firmware Security on HackingPassion.com : root@HackingPassion.com-[~]HugoenSat, 04 Jul 2026 12:06:45 +0200https://hackingpassion.com/fatfs-sd-card-jailbreak/Sat, 04 Jul 2026 12:06:45 +0200https://hackingpassion.com/fatfs-sd-card-jailbreak/<p>Millions of devices read an SD card with one small piece of code called <strong>FatFs</strong>, and researchers just found seven ways to break it. The worst one hands the whole device to whoever made the card.</p> <p><code>FatFs</code> does one small job. It lets a device read and write the FAT and exFAT format, the same format your USB sticks and SD cards use. Almost any gadget with a card slot or a USB port needs something like this, and <code>FatFs</code> is free, tiny, and easy to drop in, so a big part of the industry grabbed it. One person writes it. Thousands of products copy the file into their own gear and ship it.</p>