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CVE-2017-20224

Telesquare SKT LTE Router SDT-CS3B1 WebDAV Arbitrary File Upload

Published: Mar 16, 2026Updated: Apr 14, 2026 Sources: CVE List NVDCWE-434
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
1.0%
Top 40.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

Telesquare SKT LTE Router SDT-CS3B1 version 1.2.0 contains an arbitrary file upload vulnerability that allows unauthenticated attackers to upload malicious content by exploiting enabled WebDAV HTTP methods. Attackers can use PUT, DELETE, MKCOL, MOVE, COPY, and PROPPATCH methods to upload executable code, delete files, or manipulate server content for remote code execution or denial of service.

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
Open in CVSS calculator →

Weaknesses

CWE-434

Affected Products

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

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

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

MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

https://cxsecurity.com/issue/WLB-2017120301
cxsecurity.com
https://www.vulncheck.com/advisories/telesquare-skt-lte-router-sdt-cs3b1-webdav-arbitrary-file-upload
vulncheck.com
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5446.php
zeroscience.mk

Timeline

Published
Mar 16, 2026
Last Updated
Apr 14, 2026

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