Vulnerability in Ledger Monero
CVE-2020-6861
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.
Vulnerability class: POODLE (CVE-2014-3566)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- donjon.ledger.com/lsb/008/ (Exploit, Vendor Advisory)
- deadcode.me/blog/2020/04/25/Ledger-Monero-app-spend-key-extraction.html (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-6861?
- CVE-2020-6861 is a medium-severity vulnerability in Ledger Monero, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 5.5/10. Published 2020-05-06.
- How severe is CVE-2020-6861?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-6861 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.