CVE-2023-7345 MEDIUM

CVE-2023-7345: Ledger Live hw-app-eth EIP-712 Message Parsing Integer Truncation

Vendor Ledger
Product ledgerhq/hw-app-eth
Weakness CWE-704
Published May 19, 2026
Last update May 20, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

Ledger Live with vulnerable versions of ledgerhq/hw-app-eth prior to 6.34.7 contains an integer parsing vulnerability that allows attackers to manipulate EIP-712 typed data messages by exploiting incorrect hexadecimal field parsing when values contain an odd number of characters. Attackers can obtain signatures on truncated or misinterpreted message values to authorize unintended blockchain transactions, such as asset transfers at incorrect amounts.

Key dates

02Disclosure timeline

May 19, 2026 CVE published
May 20, 2026 Record updated