Citing BlockTempo, Ledger's security research lab, Ledger Donjon, has revealed a critical and unpatchable Boot ROM vulnerability in MediaTek's Dimensity 7300 chip, which is used in the Solana Seeker smartphone. The flaw allows attackers to gain the highest privilege level (EL3) through electromagnetic fault injection (EMFI), potentially exposing private keys stored on the device. The vulnerability cannot be fixed via software updates, requiring a full chip replacement to mitigate the risk. While the attack requires physical access and specialized equipment, automated attempts could increase success rates. Ledger emphasizes the limitations of consumer-grade chips in securing high-value crypto assets, urging users to store large holdings in offline cold wallets.
Ledger Discloses Unpatchable Boot ROM Vulnerability in Dimensity 7300 Chip Used in Solana Seeker
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