CVE-2025-69893 Information disclosure in n/a
Physical attackers can recover mnemonic codes via side-channel analysis during setup, leading to asset theft in Trezor hardware wallets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-69893?
CVE-2025-69893 is a medium-severity vulnerability in n/a, published on 14 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-385
Which versions are affected by CVE-2025-69893?
How do I fix CVE-2025-69893?
No fix has been published for CVE-2025-69893 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-69893 being exploited?
There is no known exploitation of CVE-2025-69893 in the wild and no public exploit code.
Sources
Also known as GHSA-fxwp-fxmc-jh57.