Vulnerability Details CVE-2023-27892
Insufficient length checks in the ShapeShift KeepKey hardware wallet firmware before 7.7.0 allow a global buffer overflow via crafted messages. Flaws in cf_confirmExecTx() in ethereum_contracts.c can be used to reveal arbitrary microcontroller memory on the device screen or crash the device. With physical access to a PIN-unlocked device, attackers can extract the BIP39 mnemonic secret from the hardware wallet.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 10.6%
CVSS Severity
CVSS v3 Score 3.8
References
Products affected by CVE-2023-27892
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cpe:2.3:h:shapeshift:keepkey:-
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cpe:2.3:o:shapeshift:keepkey_firmware:7.5.2
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cpe:2.3:o:shapeshift:keepkey_firmware:7.6.0