CVEvulnerability

CVE-2026-65058

5.9 MEDIUM Published 2026-07-21 Modified 2026-07-30 Official page ↗
Status
Awaiting Analysis
Published
2026-07-21
Last modified
2026-07-30
Assigner
9119a7d8-5eab-497f-8521-727c672e3725
CVSS 4.0 (9119a7d8-5eab-497f-8521-727c672e3725)
5.9 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 (9119a7d8-5eab-497f-8521-727c672e3725)
5.3 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Weaknesses
CWE-358

Description

Trezor Safe 3, Safe 5, and Safe 7 firmware contains a confirmation-binding flaw in the Ethereum sign_tx / sign_tx_eip1559 flow. For contract interactions, the device confirms only the initial calldata chunk while the signature commits to the full streamed calldata. An attacker could present calldata to a victim then supply a different tail that changes the signed transaction. Fixed in 70c9b0c.

Related

Weakness · CWE (1)

  • CWE-358 Improperly Implemented Security Check for Standard weakness

References