How serious is CVE-2017-20223?

This vulnerability has a CVSS score of 9.3 out of 10, classified as CRITICAL severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2017-20223?

Yes, proof-of-concept exploit code for CVE-2017-20223 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2017-20223?

Check the official CVE details for a complete list of affected products and versions.

How do I fix CVE-2017-20223?

To remediate CVE-2017-20223, check for security patches from the vendor. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2017-20223

Critical

|9.3

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows attackers to access sensitive information and functionalities of the Telesquare SKT LTE Router without proper permissions by simply changing certain input parameters. It requires no special skills, making it easy for anyone to exploit if they know how to manipulate the system's requests.

Technical 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 Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeChanged

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

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$8,000($5K-$15K)

Vendor Response

Grade APatched in 0 days

Quick Information

Published

Mar 16, 2026

22 days ago

Last Modified

Mar 16, 2026

22 days ago