PT-2026-25740 · Telesquare · Sdt-Cs3B1 Firmware

Published 2026-03-16 · Updated 2026-03-16 · CVE-2017-20222

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 attackers to remotely reboot the device without authentication, leading to a denial of service. This is achieved by sending POST requests to the /lte.cgi API endpoint with the Command=Reboot parameter.

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

Exploit

Fix

DoS

Missing Authentication

Weakness Enumeration

CWE-306

Related Identifiers

CVE-2017-20222

Affected Products

Sdt-Cs3B1 Firmware

References · 8

• 🔥 https://packetstormsecurity.com/files/145555 · Exploit
• 🔥 https://cxsecurity.com/issue/WLB-2017120300 · Exploit
• 🔥 https://exploit-db.com/exploits/43401 · Exploit
• 🔥 https://zeroscience.mk/en/vulnerabilities/ZSL-2017-5444.php · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2017-20222 · Security Note
• https://t.me/CVEtracker/47479 · Telegram Post
• https://vulncheck.com/advisories/telesquare-skt-lte-router-sdt-cs3b1-unauthenticated-remote-reboot · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/136825 · Note