PT-2026-25741 · Telesquare · Sdt-Cs3B1 Firmware

Published 2026-03-16 · Updated 2026-03-16 · CVE-2017-20223

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 firmware version 1.2.0 contains an insecure direct object reference issue. This allows attackers to bypass authorization and access resources by manipulating user-supplied input parameters. Attackers can directly reference objects within the system, potentially retrieving sensitive information and accessing functionalities without appropriate access controls.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

IDOR

Weakness Enumeration

CWE-639

Related Identifiers

CVE-2017-20223

Affected Products

Sdt-Cs3B1 Firmware

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2017-20223 · Security Note
• https://exploit-db.com/exploits/43402 · Note
• https://vulncheck.com/advisories/telesquare-skt-lte-router-sdt-cs3b1-insecure-direct-object-reference · Note
• https://cxsecurity.com/issue/WLB-2017120297 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/136993 · Note
• https://zeroscience.mk/en/vulnerabilities/ZSL-2017-5445.php · Note
• https://packetstormsecurity.com/files/145551 · Note
• https://t.me/CVEtracker/47480 · Telegram Post