CVE-2017-20223

CRITICAL EPSS 40.4%
Published Mar 16, 20263mo ago · Modified Jun 17, 20262w ago
9.3 CVSS 4.0
Critical
Find Similar
Published Mar 16, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
9.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
40.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-639

Affected Products 2

VendorProductVersionRange
telesquaresdt-cs3b1_firmware1.2.0any
telesquaresdt-cs3b1*any

References 6

  • cxsecurity.com https://cxsecurity.com/issue/WLB-2017120297
    Issue Tracking
  • exchange.xforce.ibmcloud.com https://exchange.xforce.ibmcloud.com/vulnerabilities/136993
    Third Party Advisory
  • packetstormsecurity.com https://packetstormsecurity.com/files/145551
    Third Party Advisory
  • exploit-db.com https://www.exploit-db.com/exploits/43402/
    Third Party AdvisoryVDB Entry
  • vulncheck.com https://www.vulncheck.com/advisories/telesquare-skt-lte-router-sdt-cs3b1-insecure-direct-object-reference
    Third Party Advisory
  • zeroscience.mk https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5445.php
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.