CVE-2025-69893

MEDIUM
4.6
CVSS Score
Published: April 14, 2026 at 12:00 AM UTC
Updated: July 5, 2026 at 02:30 AM UTC
3 products affected across 1 vendorTrezor OneTrezor TTrezor Safe

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Severity
MEDIUM4.6
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1.13.0 ≤ v ≤ 1.14.0
1.13.0 ≤ v ≤ 1.14.0
1.13.0 ≤ v ≤ 1.14.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.6MEDIUMCISA-ADP
Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-385

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