What is CVE-2019-20471?

CVE-2019-20471 is a high-severity vulnerability in Tk-Star Q90 Junior Gps Horloge, classified under Use of Hard-coded Credentials. CVSS score: 7.8/10. Published 2021-02-01.

How severe is CVE-2019-20471?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Tk-Star Q90 Junior Gps Horloge

CVE-2019-20471

An issue was discovered on TK-Star Q90 Junior GPS horloge 3.1042.9.8656 devices. When using the device at initial setup, a default password is used (123456) for administrative purposes. There is no prompt to change this password. Note that this password can be used in combination with CVE-2019-20470.

Published 2021-02-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (26.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% 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

Tk-Star Q90 Junior Gps Horloge
Tk-Star Q90 Junior Gps Horloge Firmware — versions 3.1042.9.8656

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

www.tk-star.com (Vendor Advisory)
www.eurofins-cybersecurity.com/news/connected-devices-smart-watches/ (Third Party Advisory)
seclists.org/fulldisclosure/2024/Jul/14 (mailing-list)

Frequently asked questions

What is CVE-2019-20471?: CVE-2019-20471 is a high-severity vulnerability in Tk-Star Q90 Junior Gps Horloge, classified under Use of Hard-coded Credentials. CVSS score: 7.8/10. Published 2021-02-01.
How severe is CVE-2019-20471?: High severity. CVSS v3 base score is 7.8 out of 10.