Ledger ledgerhq/hw-app-eth/Live up to 6.34.6 Data Message type conversion

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Ledger ledgerhq, hw-app-eth and Live up to 6.34.6. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component Data Message Handler. Performing a manipulation results in type conversion. This vulnerability is cataloged as CVE-2023-7345. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Ledger ledgerhq, hw-app-eth and Live up to 6.34.6. It has been classified as problematic. This affects an unknown function of the component Data Message Handler. The manipulation with an unknown input leads to a type conversion vulnerability. CWE is classifying the issue as CWE-704. The product does not correctly convert an object, resource, or structure from one type to a different type. This is going to have an impact on integrity. The summary by CVE is:

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.

The weakness was shared by Ian Fisher. The advisory is shared at ledger.com. This vulnerability is uniquely identified as CVE-2023-7345 since 05/19/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

Upgrading to version 6.34.7 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-60576). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (VulnCheck): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Type conversion
CWE: CWE-704
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: ledgerhq/hw-app-eth/Live 6.34.7

Timelineinfo

05/19/2026 CVE reserved
05/19/2026 +0 days VulDB entry created
05/20/2026 +0 days Advisory disclosed
05/20/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: ledger.com
Researcher: Ian Fisher
Status: Confirmed

CVE: CVE-2023-7345 (🔒)
GCVE (CVE): GCVE-0-2023-7345
GCVE (VulDB): GCVE-100-364749
EUVD: 🔒

Entryinfo

Created: 05/20/2026 00:33
Updated: 05/20/2026 01:34
Changes: 05/20/2026 00:33 (76), 05/20/2026 01:34 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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