Vulnerability in Ledger Bitcoin App
CVE-2023-7346
Ledger Bitcoin app versions 2.1.0 and 2.1.1 contain an address derivation vulnerability that allows attackers to cause incorrect Bitcoin addresses to be displayed by exploiting improper handling of miniscript policies containing the a: fragment. Attackers can craft malicious miniscript policies that cause the device to derive and display incorrect receiving addresses, potentially leading to funds being sent to unintended addresses.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.001 (2.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Ledger Bitcoin App — versions 2.1.0, 2.1.1, 2.1.2
Weakness classification (CWE)
References
- Ledger Security Bulletin 019 (vendor-advisory)
- www.vulncheck.com/advisories/ledger-bitcoin-app-address-derivation-error-via-mi… (third-party-advisory)
Frequently asked questions
- What is CVE-2023-7346?
- CVE-2023-7346 is a medium-severity vulnerability in Ledger Bitcoin App, classified under Incorrect Calculation. CVSS score: 4.0/10. Published 2026-05-20.
- How severe is CVE-2023-7346?
- Medium severity. CVSS v3 base score is 4.0 out of 10.