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

Q: What is the severity of CVE-2023-7345?

CVE-2023-7345 has been classified with a high severity due to its potential to allow attackers to manipulate EIP-712 typed data messages.

Q: How do I fix CVE-2023-7345?

To fix CVE-2023-7345, upgrade the vulnerable versions of ledgerhq/hw-app-eth to version 6.34.7 or later.

Q: What software is affected by CVE-2023-7345?

CVE-2023-7345 affects ledgerhq/hw-app-eth versions prior to 6.34.7.

Q: What is the nature of the vulnerability in CVE-2023-7345?

CVE-2023-7345 is an integer parsing vulnerability that exploits incorrect hexadecimal field parsing.

Q: Can CVE-2023-7345 lead to data integrity issues?

Yes, CVE-2023-7345 can lead to data integrity issues by allowing manipulation of typed data messages.

Published May 19, 2026

Updated

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.

Affected Software

1 affected component

npm/@ledgerhq/hw-app-eth<6.34.7

Event History

May 19, 2026

CVE Published

via MITRE·09:55 PM

Data Sourced

via MITRE·09:55 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·10:16 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2023-7345?

CVE-2023-7345 has been classified with a high severity due to its potential to allow attackers to manipulate EIP-712 typed data messages.

How do I fix CVE-2023-7345?

To fix CVE-2023-7345, upgrade the vulnerable versions of ledgerhq/hw-app-eth to version 6.34.7 or later.

What software is affected by CVE-2023-7345?

CVE-2023-7345 affects ledgerhq/hw-app-eth versions prior to 6.34.7.

What is the nature of the vulnerability in CVE-2023-7345?

CVE-2023-7345 is an integer parsing vulnerability that exploits incorrect hexadecimal field parsing.

Can CVE-2023-7345 lead to data integrity issues?

Yes, CVE-2023-7345 can lead to data integrity issues by allowing manipulation of typed data messages.

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