What is CVE-2017-20222?

CVE-2017-20222 is a high-severity vulnerability in Telesquare Sdt-cs3b1, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-03-16.

How severe is CVE-2017-20222?

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

Auth bypass in Telesquare Sdt-cs3b1

CVE-2017-20222

Telesquare SKT LTE Router SDT-CS3B1 software version 1.2.0 contains an unauthenticated remote reboot vulnerability that allows attackers to trigger device reboot without authentication. Attackers can send POST requests to the lte.cgi endpo…

Vulnerability class: Broken Authentication

EPSS: 0.001 (27.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Telesquare Sdt-cs3b1 — versions 1.2.0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

Zero Science Lab Disclosure (third-party-advisory)
CXSecurity (third-party-advisory)
Packet Storm Security (exploit)
Exploit DB (exploit)
IBM X-Force Exchange (vdb-entry)
VulnCheck Advisory: Telesquare SKT LTE Router SDT-CS3B1 Unauthenticated Remote Reboot (third-party-advisory)

Frequently asked questions

What is CVE-2017-20222?: CVE-2017-20222 is a high-severity vulnerability in Telesquare Sdt-cs3b1, classified under Missing Authentication for Critical Function. CVSS score: 7.5/10. Published 2026-03-16.
How severe is CVE-2017-20222?: High severity. CVSS v3 base score is 7.5 out of 10.