Vulnerability Details CVE-2020-14199
BIP-143 in the Bitcoin protocol specification mishandles the signing of a Segwit transaction, which allows attackers to trick a user into making two signatures in certain cases, potentially leading to a huge transaction fee. NOTE: this affects all hardware wallets. It was fixed in 1.9.1 for the Trezor One and 2.3.1 for the Trezor Model T.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 23.5%
CVSS Severity
CVSS v3 Score 6.5
CVSS v2 Score 4.3
References
Products affected by CVE-2020-14199
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cpe:2.3:h:satoshilabs:trezor_model_t:-
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cpe:2.3:h:satoshilabs:trezor_one:-
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cpe:2.3:o:satoshilabs:trezor_model_t_firmware:*
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cpe:2.3:o:satoshilabs:trezor_one_firmware:*