CVE-2025-69893
A side-channel vulnerability exists in the implementation of BIP-39 mnemonic processing, as observed in Trezor One v1.13.0 to v1.14.0, Trezor T v1.13.0 to v1.14.0, and Trezor Safe v1.13.0 to v1.14.0 hardware wallets. This originates from the BIP-39 standard guidelines, which induce non-constant time execution and specific branch patterns for word searching. An attacker with physical access during the initial setup phase can collect a single side-channel trace. By utilizing profiling-based Deep Learning Side-Channel Analysis (DL-SCA), the attacker can recover the mnemonic code and subsequently steal the assets. The issue was patched.
Published:Apr 14, 2026
Last Modified:Apr 18, 2026
EPS:Apr 14, 2026
EPSS Score:0.0007
CVSS Score:4.6
Affected Products
Vendor
Product
Action
Vendor
Satoshilabs
Product
Trezor One
Satoshilabs
Trezor One
Vendor
Satoshilabs
Product
Trezor Safe
Satoshilabs
Trezor Safe
Vendor
Satoshilabs
Product
Trezor T
Satoshilabs
Trezor T
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
