Vulnerability · Published May 19, 2026 · Assigned by VulnCheck

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

Medium 6.5

In plain English

A medium-severity security flaw in Ledger Live from Ledger. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.3%top 81.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Ledger	ledgerhq/hw-app-eth	0 – before 6.34.7
Ledger	Ledger Live	0 – before 2.70.0

Weakness: CWE-704 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

References

Ledger Security Bulletin 020 vendor-advisory
https://www.vulncheck.com/advisories/ledger-live-hw-app-eth-eip-712-message-parsing-integer-truncation third-party-advisory