HOMEVULNERABILITIESCVE-2019-20473
MEDIUM

CVE-2019-20473

NVD-CWE-noinfoPublished: February 1, 2021· Updated: Jun 17, 2026

6.8
CVSS v3.1

Official Description

An issue was discovered on TK-Star Q90 Junior GPS horloge 3.1042.9.8656 devices. Any SIM card used with the device cannot have a PIN configured. If a PIN is configured, the device simply produces a "Remove PIN and restart!" message, and cannot be used. This makes it easier for an attacker to use the SIM card by stealing the device.

NVD Source

Technical Analysis

CVE-2019-20473 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorPhysical
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

tk-star2 product(s)
q90 junior gps horloge firmwareq90 junior gps horloge
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.eurofins-cybersecurity.com/news/connected-devices-smart-watches/
ADVISORYhttps://www.tk-star.com
ADVISORYhttps://www.eurofins-cybersecurity.com/news/connected-devices-smart-watches/
ADVISORYhttps://www.tk-star.com

All References (6)

→
http://seclists.org/fulldisclosure/2024/Jul/14
→
https://www.eurofins-cybersecurity.com/news/connected-devices-smart-watches/Third Party Advisory
→
https://www.tk-star.comVendor Advisory
→
http://seclists.org/fulldisclosure/2024/Jul/14
→
https://www.eurofins-cybersecurity.com/news/connected-devices-smart-watches/Third Party Advisory
→
https://www.tk-star.comVendor Advisory

Quick Facts

CVE IDCVE-2019-20473
CVSS Score6.8 / 10
SeverityMEDIUM
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 1, 2021

Related CVEs (NVD-CWE-noinfo)

CVE-2002-2264
10.0
CVE-2006-3232
10.0
CVE-2008-7196
10.0
CVE-2005-4200
10.0
CVE-2005-4007
10.0
CVE-2006-3702
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-20473 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2019-20473·NVD