Ledger Bitcoin app up to 2.1.0/2.1.1 Miniscript Policy calculation

CVSS Meta Temp Score
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CTI Interest Score
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2.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Ledger Bitcoin app up to 2.1.0/2.1.1. This vulnerability affects unknown code of the component Miniscript Policy Handler. The manipulation leads to calculation. This vulnerability is referenced as CVE-2023-7346. It is possible to launch the attack on the physical device. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Ledger Bitcoin app up to 2.1.0/2.1.1. It has been rated as problematic. This issue affects some unknown processing of the component Miniscript Policy Handler. The manipulation with an unknown input leads to a calculation vulnerability. Using CWE to declare the problem leads to CWE-682. The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management. Impacted is integrity. The summary by CVE is:

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.

The weakness was published by Kevin Loaec and Antoine Poinsot. It is possible to read the advisory at donjon.ledger.com. The identification of this vulnerability is CVE-2023-7346 since 05/20/2026. The exploitation is known to be difficult. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.1.2 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 2.9
VulDB Meta Temp Score: 2.9

VulDB Base Score: 1.8
VulDB Temp Score: 1.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.0
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Calculation
CWE: CWE-682
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Bitcoin app 2.1.2

Timelineinfo

05/20/2026 Advisory disclosed
05/20/2026 +0 days CVE reserved
05/20/2026 +0 days VulDB entry created
07/23/2026 +64 days VulDB entry last update

Sourcesinfo

Advisory: donjon.ledger.com
Researcher: Kevin Loaec, Antoine Poinsot
Status: Confirmed

CVE: CVE-2023-7346 (🔒)
GCVE (CVE): GCVE-0-2023-7346
GCVE (VulDB): GCVE-100-364895

Entryinfo

Created: 05/20/2026 18:40
Updated: 07/23/2026 17:16
Changes: 05/20/2026 18:40 (76), 07/23/2026 17:16 (1)
Complete: 🔍
Cache ID: 216::103

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