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CVE-2020-6861

17
FAUCET Score

CVE-2020-6861 describes a critical design flaw in the Ledger Monero app (versions prior to 1.5.1) for Ledger Nano S and Nano X devices, allowing a local attacker to extract the master spending key. This vulnerability has a CVSS score of 5.5 (Medium), indicating a low attack complexity and requiring local access to a PIN-entered Ledger device connected to a host PC, with the potential for high confidentiality impact. While there is no evidence of active exploitation, public exploit code, or KEV listing, the vulnerability has garnered some community discussion, as evidenced by a Reddit mention.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.5.1CPE matchmatch criteria
cpe:2.3:a:ledger:monero:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
36.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 90th percentile among its peer group of 15,937 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

deadcode.me / blog/2020/04/25/Ledger-Monero-app-spend-key-extraction.html
ExploitThird Party Advisory
donjon.ledger.com / lsb/008
ExploitVendor Advisory