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CVE-2017-20223

Telesquare SKT LTE Router SDT-CS3B1 Insecure Direct Object Reference

Published: Mar 16, 2026Updated: Apr 14, 2026 Sources: CVE List NVDCWE-639
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
0.5%
Top 59.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-639

Affected Products

SDT-CS3B1Telesquare
Embedded
ICS / OT / IoT / ip-camera-nvr
sdt-cs3b1 firmwaretelesquare
Embedded
ICS / OT / IoT / ip-camera-nvr
telesquarecommercialICS / OT / IoTaka tlr-2005ksh firmware, sdt-cs3b1 firmware

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5445.php
zeroscience.mk
https://www.exploit-db.com/exploits/43402/
exploit-db.com
https://packetstormsecurity.com/files/145551
packetstormsecurity.com
and 3 more references View all →

Timeline

Published
Mar 16, 2026
Last Updated
Apr 14, 2026

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