Vulnerability · Published May 20, 2026 · Assigned by VulnCheck

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

Medium 4.0

In plain English

A medium-severity security flaw in Ledger Bitcoin app from Ledger. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).

Severity (CVSS 3.1)4.0Medium

Exploit odds (30 days)0.1%top 96.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
Ledger	Ledger Bitcoin app	2.1.02.1.1

Weakness: CWE-682 · Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

References

Ledger Security Bulletin 019 vendor-advisory
https://www.vulncheck.com/advisories/ledger-bitcoin-app-address-derivation-error-via-miniscript third-party-advisory