What is CVE-2018-6875?

CVE-2018-6875 is a high-severity vulnerability in Keepkey, classified under Use of Externally-Controlled Format String. CVSS score: 7.5/10. Published 2018-03-14.

How severe is CVE-2018-6875?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Keepkey

CVE-2018-6875

Format String vulnerability in KeepKey version 4.0.0 allows attackers to trigger information display (of information that should not be accessible), related to text containing characters that the device's font lacks.

Published 2018-03-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (64.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Keepkey
Shapeshift Keepkey Firmware — versions 4.0.0

Weakness classification (CWE)

CWE-134 — Use of Externally-Controlled Format String

References

www.keepkey.com/2018/03/09/security-updates-responsible-disclosure/ (Vendor Advisory)

Frequently asked questions

What is CVE-2018-6875?: CVE-2018-6875 is a high-severity vulnerability in Keepkey, classified under Use of Externally-Controlled Format String. CVSS score: 7.5/10. Published 2018-03-14.
How severe is CVE-2018-6875?: High severity. CVSS v3 base score is 7.5 out of 10.