CVE-2017-20222

Telesquare SKT LTE Router SDT-CS3B1 Unauthenticated Remote Reboot

HIGH
7.5
CVSS Score
Published: March 16, 2026 at 01:28 AM UTC
Updated: June 17, 2026 at 01:15 AM UTC
2 products affected across 1 vendorSdt CS3B1 FirmwareSDT-CS3B1

Using SDT-CS3B1 by Telesquare?

Get instant alerts when new vulnerabilities affect SDT-CS3B1 - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 0.7%
SSVC
PoC

Description

Telesquare SKT LTE Router SDT-CS3B1 software version 1.2.0 contains an unauthenticated remote reboot vulnerability that allows attackers to trigger device reboot without authentication. Attackers can send POST requests to the lte.cgi endpoint with the Command=Reboot parameter to cause denial of service by forcing the router to restart.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

Third Party AdvisoryExploit
Source: cverecord
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5444.php
Third Party AdvisoryExploitIssue Tracking
Source: cverecord
https://cxsecurity.com/issue/WLB-2017120300
ExploitThird Party Advisory
Source: cverecord
https://packetstormsecurity.com/files/145555
ExploitThird Party AdvisoryVDB Entry
Source: cverecord
https://www.exploit-db.com/exploits/43401/
VDB EntryThird Party Advisory
Source: cverecord
https://exchange.xforce.ibmcloud.com/vulnerabilities/136825

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-306

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card