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Inability to cancel certain flows on pre-production firmware
Reported on October 31, 2025
In a pre-production firmware for Trezor Safe 7, a user could enter a dialog where pressing Cancel did not actually cancel the flow. This issue occurred only in non-critical paths such as staking delegation or similar actions, not in fund-sending flows.
The issue was present only in a pre-production firmware that was available for small group of people directly after the launch of Safe 7. The fix was already included in the version released to the general public.
Resolved vulnerabilities
Reported by community. Investigated. Resolved. Because your security is never optional.
- Fix side-channel in BIP-39 mnemonic processing when unlockedSeptember 24, 2025
- Donjon's Trezor Safe 3 evaluationNovember 12, 2024
- Missing confirmation in the ECDHSessionKey callNovember 26, 2023
- XSS in Trezor Connect legacy versionsFebruary 7, 2023
- Insufficient field size check in ProtobufJuly 12, 2021
- XSS in Trezor ConnectAugust 3, 2020