CVE-2017-20223CWE-639

Telesquare SKT LTE Router SDT-CS3B1 Insecure Direct Object Reference

Critical · published March 16, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
44.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
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
EPSS
0.00533 · 44.2th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-03-16T01:28Z
EPSS history
Timeline
  • 16 MAR 01:28Z
    Telesquare SKT LTE Router SDT-CS3B1 Insecure Direct Object Reference
    cvelistv5