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CVE-2017-20223— Telesquare SKT LTE Router SDT-CS3B1 Insecure Direct Object Reference

Quick assessment

Affected
Telesquare SDT-CS3B1
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Telesquare SKT LTE Router SDT-CS3B1是韩国Telesquare公司的一款无线路由器。 Telesquare SKT LTE Router SDT-CS3B1 1.2.0版本存在安全漏洞，该漏洞源于存在不安全的直接对象引用漏洞，可能导致攻击者绕过授权访问资源。

CVSS 9.8 · Critical EPSS 0.52% · P42
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I. Basic Information for CVE-2017-20223

Vulnerability Information
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Vulnerability Title
Telesquare SKT LTE Router SDT-CS3B1 Insecure Direct Object Reference
Source: CVE Program / CVE List V5
Vulnerability Description
Telesquare SKT LTE Router SDT-CS3B1 firmware version 1.2.0 contains an insecure direct object reference vulnerability that allows attackers to bypass authorization and access resources by manipulating user-supplied input parameters. Attackers can directly reference objects in the system to retrieve sensitive information and access functionalities without proper access controls.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Telesquare SKT LTE Router SDT-CS3B1 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Telesquare SKT LTE Router SDT-CS3B1是韩国Telesquare公司的一款无线路由器。 Telesquare SKT LTE Router SDT-CS3B1 1.2.0版本存在安全漏洞，该漏洞源于存在不安全的直接对象引用漏洞，可能导致攻击者绕过授权访问资源。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Telesquare SDT-CS3B1 1.2.0 -

II. Public POCs for CVE-2017-20223

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III. Intelligence Information for CVE-2017-20223

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Vendor Advisories for CVE-2017-20223 (2)

Exploits & Public PoCs for CVE-2017-20223 (3)

Same Patch Batch · Telesquare · 2026-03-16 · 4 CVEs total

CVE-2017-20224 9.8 CRITICAL Telesquare SKT LTE Router SDT-CS3B1 WebDAV Arbitrary File Upload
CVE-2017-20222 7.5 HIGH Telesquare SKT LTE Router SDT-CS3B1 Unauthenticated Remote Reboot
CVE-2017-20221 4.3 MEDIUM Telesquare SKT LTE Router SDT-CS3B1 CSRF System Command Execution

IV. Related Vulnerabilities

Same product: SDT-CS3B1
Same vendor: Telesquare
Same weakness: CWE-639

V. Comments for CVE-2017-20223

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