CVE-2023-7345
Ledger Live hw-app-eth EIP-712 Message Parsing Integer Truncation
Description
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.
INFO
Published Date :
May 19, 2026, 10:16 p.m.
Last Modified :
July 24, 2026, 9:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update ledgerhq/hw-app-eth to version 6.34.7 or later.
- Ensure EIP-712 validation correctly parses hexadecimal fields.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-7345.
| URL | Resource |
|---|---|
| https://donjon.ledger.com/lsb/020/ | |
| https://www.vulncheck.com/advisories/ledger-live-hw-app-eth-eip-712-message-parsing-integer-truncation |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-7345 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-7345
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-7345 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-7345 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 24, 2026
Action Type Old Value New Value Added Translation Title: Ledger Live, Description: Ledger Live con versiones vulnerables de ledgerhq/hw-app-eth anteriores a la 6.34.7 contiene una vulnerabilidad de análisis de enteros que permite a los atacantes manipular mensajes de datos tipados EIP-712 al explotar un análisis incorrecto de campos hexadecimales cuando los valores contienen un número impar de caracteres. Los atacantes pueden obtener firmas en valores de mensajes truncados o malinterpretados para autorizar transacciones de blockchain no intencionadas, como transferencias de activos por importes incorrectos. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Ledger', 'product': 'ledgerhq/hw-app-eth', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '6.34.7', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'Ledger', 'product': 'Ledger Live', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.70.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2023-7345', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-20T17:19:58.634422Z'} -
CVE Modified by [email protected]
May. 20, 2026
Action Type Old Value New Value Added Reference https://donjon.ledger.com/lsb/020/ Removed Reference https://www.ledger.com/security-bulletin -
New CVE Received by [email protected]
May. 19, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V4.0 AV:N/AC:L/AT:N/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 Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Added CWE CWE-704 Added Reference https://www.ledger.com/security-bulletin Added Reference https://www.vulncheck.com/advisories/ledger-live-hw-app-eth-eip-712-message-parsing-integer-truncation