Vulnerability in Ledger Ledgerhq/hw-App-Eth
CVE-2023-7345
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Ledger Ledgerhq/hw-App-Eth — versions 0
- Ledger Live — versions 0
Weakness classification (CWE)
References
- www.ledger.com/security-bulletin (vendor-advisory)
- www.vulncheck.com/advisories/ledger-live-hw-app-eth-eip-712-message-parsing-int… (third-party-advisory)
- donjon.ledger.com/lsb/020/ (vendor-advisory)
Frequently asked questions
- What is CVE-2023-7345?
- CVE-2023-7345 is a medium-severity vulnerability in Ledger Ledgerhq/hw-App-Eth, classified under Incorrect Type Conversion or Cast. CVSS score: 6.5/10. Published 2026-05-19.
- How severe is CVE-2023-7345?
- Medium severity. CVSS v3 base score is 6.5 out of 10.