Telesquare SDT-CS3B1 1.2.0 lte.cgi Command missing authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Telesquare SDT-CS3B1 1.2.0. Affected by this issue is some unknown functionality of the file lte.cgi. This manipulation of the argument Command causes missing authentication. This vulnerability is tracked as CVE-2017-20222. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Telesquare SDT-CS3B1 1.2.0. It has been declared as critical. Affected by this vulnerability is an unknown code of the file lte.cgi. The manipulation of the argument Command with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect availability. The summary by CVE is:

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.

The weakness was disclosed by Gjoko Krstic as ZSL-2017-5444. It is possible to read the advisory at zeroscience.mk. This vulnerability is known as CVE-2017-20222 since 03/15/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/16/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/15/2026 CVE reserved
03/16/2026 +1 days Advisory disclosed
03/16/2026 +0 days VulDB entry created
03/16/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: ZSL-2017-5444
Researcher: Gjoko Krstic
Status: Not defined

CVE: CVE-2017-20222 (🔒)
GCVE (CVE): GCVE-0-2017-20222
GCVE (VulDB): GCVE-100-351187

Entryinfo

Created: 03/16/2026 06:51
Changes: 03/16/2026 06:51 (77)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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