CVE-2023-7346: Ledger Bitcoin App 2.1.0 Address Derivation Error via Miniscript

Published May 20, 2026

Updated

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.

Affected Software

1 affected component

Ledger Ledger Bitcoin App=2.1.0, =2.1.1

Event History

May 20, 2026

CVE Published

via MITRE·02:13 PM

Data Sourced

via MITRE·02:13 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·04:16 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2023-7346?

CVE-2023-7346 is categorized as a high-severity vulnerability due to the potential for incorrect Bitcoin addresses to be displayed.

How do I fix CVE-2023-7346?

To fix CVE-2023-7346, you should update the Ledger Bitcoin App to version 2.1.2 or later, which addresses the address derivation error.

Which versions of the Ledger Bitcoin App are affected by CVE-2023-7346?

CVE-2023-7346 affects Ledger Bitcoin App versions 2.1.0 and 2.1.1.

What type of vulnerability is CVE-2023-7346?

CVE-2023-7346 is an address derivation error vulnerability that arises from improper handling of miniscript policies.

What are the potential impacts of CVE-2023-7346?

The potential impacts of CVE-2023-7346 include misleading users with incorrect Bitcoin addresses, which could lead to financial loss.

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