CVE-2025-69893

MEDIUM 4.6

CVSS Score

4.6

EPSS Score

0.0%

EPSS Percentile

6th

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.

Vendor	n/a
Product	n/a
Published	Apr 14, 2026
Last Updated	Apr 16, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

trezor.com: http://trezor.com trezor.io: https://trezor.io/vulnerability/fix-side-channel-in-bip-39-mnemonic-processing-when-unlocked