CVE-2020-6861

Name: CVE-2020-6861
Creator: NVD / NIST
Published: 2020-05-06T14:15:11.083+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2020-6861 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A flawed protocol design in the Ledger Monero app before 1.5.1 for Ledger Nano and Ledger S devices allows a local attacker to extract the master spending key by sending crafted messages to this app selected on a PIN-entered Ledger connected to a host PC.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

A flawed protocol design in the Ledger Monero app before 1.5.1 for Ledger Nano and Ledger S devices allows a local attacker to extract the master spending key by sending crafted messages to this app selected on a PIN-entered Ledger connected to a host PC.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.44%

35.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-327

Affected Software

Vendor	Product	Versions
Ledger	Monero	< 1.5.1

References

https://deadcode.me/blog/2020/04/25/Ledger-Monero-app-spend-key-extraction.htmlExploit, Third Party Advisory
https://donjon.ledger.com/lsb/008/Exploit, Vendor Advisory
https://deadcode.me/blog/2020/04/25/Ledger-Monero-app-spend-key-extraction.htmlExploit, Third Party Advisory
https://donjon.ledger.com/lsb/008/Exploit, Vendor Advisory

Timeline

Published: May 6, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-6861?

How severe is CVE-2020-6861?

CVE-2020-6861 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2020-6861?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-6861?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST