PT-2026-25742 · Telesquare · Sdt-Cs3B1 Firmware

Published 2026-03-16 · Updated 2026-03-16 · CVE-2017-20224

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Telesquare SKT LTE Router SDT-CS3B1 version 1.2.0

Description The Telesquare SKT LTE Router SDT-CS3B1 version 1.2.0 contains a flaw that allows unauthenticated attackers to upload malicious content. This is possible due to enabled WebDAV HTTP methods. Attackers can utilize HTTP methods such as PUT, DELETE, MKCOL, MOVE, COPY, and PROPPATCH to upload executable code, delete files, or manipulate server content, potentially leading to remote code execution or denial of service.

Recommendations Update to a newer version that contains a fix for this vulnerability.

Exploit

Fix

RCE

DoS

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2017-20224

Affected Products

Sdt-Cs3B1 Firmware

References · 5

• 🔥 https://zeroscience.mk/en/vulnerabilities/ZSL-2017-5446.php · Exploit
• 🔥 https://cxsecurity.com/issue/WLB-2017120301 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2017-20224 · Security Note
• https://t.me/CVEtracker/47481 · Telegram Post
• https://vulncheck.com/advisories/telesquare-skt-lte-router-sdt-cs3b1-webdav-arbitrary-file-upload · Note