CVE-2023-7345
Ledger Live hw-app-eth EIP-712 Message Parsing Integer Truncation
- State
- Published
- Severity
- 6.9 Medium
- Published
- May 19, 2026
- Updated
- Jul 15, 2026
- Reserved
- May 19, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N | VulnCheck |
Weaknesses
- CWE-704 Incorrect Type Conversion or Cast
Affected Products
| Product | Versions |
|---|---|
ledgerhq/hw-app-ethLedger |
|
Ledger LiveLedger |
|
References
- Ledger Security Bulletin 020vendor-advisory
- https://www.vulncheck.com/advisories/ledger-live-hw-app-eth-eip-712-message-parsing-integer-truncationthird-party-advisory
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