What is CVE-2017-20224?

CVE-2017-20224 is a critical-severity vulnerability in Telesquare Sdt-cs3b1, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-03-16.

How severe is CVE-2017-20224?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Telesquare Sdt-cs3b1

CVE-2017-20224

Telesquare SKT LTE Router SDT-CS3B1 version 1.2.0 contains an arbitrary file upload vulnerability that allows unauthenticated attackers to upload malicious content by exploiting enabled WebDAV HTTP methods. Attackers can use PUT, DELETE, M…

Vulnerability class: Unrestricted File Upload

EPSS: 0.002 (41.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Telesquare Sdt-cs3b1 — versions 1.2.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

Zero Science Lab Disclosure (third-party-advisory)
CXSecurity (third-party-advisory)
VulnCheck Advisory: Telesquare SKT LTE Router SDT-CS3B1 WebDAV Arbitrary File Upload (third-party-advisory)

Frequently asked questions

What is CVE-2017-20224?: CVE-2017-20224 is a critical-severity vulnerability in Telesquare Sdt-cs3b1, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-03-16.
How severe is CVE-2017-20224?: Critical severity. CVSS v3 base score is 9.8 out of 10.