CVE-2017-20221
Telesquare SKT LTE Router SDT-CS3B1 CSRF System Command Execution
Description
Telesquare SKT LTE Router SDT-CS3B1 version 1.2.0 contains a cross-site request forgery vulnerability that allows authenticated attackers to execute arbitrary system commands by exploiting missing request validation. Attackers can craft malicious web pages that perform administrative actions when visited by logged-in users, enabling command execution with router privileges.
INFO
Published Date :
March 16, 2026, 2:17 p.m.
Last Modified :
April 14, 2026, 5:29 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2017-20221
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | LOW | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update the router firmware to the latest version.
- Ensure proper request validation is implemented.
- Restrict administrative access to trusted networks.
- Log and monitor administrative actions.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-20221.
| URL | Resource |
|---|---|
| https://cxsecurity.com/issue/WLB-2017120299 | Issue Tracking |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/136839 | Third Party Advisory |
| https://packetstormsecurity.com/files/145550 | Exploit Third Party Advisory |
| https://www.exploit-db.com/exploits/43400/ | Exploit VDB Entry |
| https://www.vulncheck.com/advisories/telesquare-skt-lte-router-sdt-cs3b1-csrf-system-command-execution | Third Party Advisory |
| https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5443.php | Exploit Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-20221 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-20221
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-20221 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-20221 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 14, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N Added CPE Configuration AND OR *cpe:2.3:o:telesquare:sdt-cs3b1_firmware:1.2.0:*:*:*:*:*:*:* OR cpe:2.3:h:telesquare:sdt-cs3b1:-:*:*:*:*:*:*:* Added Reference Type VulnCheck: https://cxsecurity.com/issue/WLB-2017120299 Types: Issue Tracking Added Reference Type VulnCheck: https://exchange.xforce.ibmcloud.com/vulnerabilities/136839 Types: Third Party Advisory Added Reference Type VulnCheck: https://packetstormsecurity.com/files/145550 Types: Exploit, Third Party Advisory Added Reference Type VulnCheck: https://www.exploit-db.com/exploits/43400/ Types: Exploit, VDB Entry Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/telesquare-skt-lte-router-sdt-cs3b1-csrf-system-command-execution Types: Third Party Advisory Added Reference Type VulnCheck: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5443.php Types: Exploit, Third Party Advisory -
New CVE Received by [email protected]
Mar. 16, 2026
Action Type Old Value New Value Added Description Telesquare SKT LTE Router SDT-CS3B1 version 1.2.0 contains a cross-site request forgery vulnerability that allows authenticated attackers to execute arbitrary system commands by exploiting missing request validation. Attackers can craft malicious web pages that perform administrative actions when visited by logged-in users, enabling command execution with router privileges. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/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 Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Added CWE CWE-352 Added Reference https://cxsecurity.com/issue/WLB-2017120299 Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/136839 Added Reference https://packetstormsecurity.com/files/145550 Added Reference https://www.exploit-db.com/exploits/43400/ Added Reference https://www.vulncheck.com/advisories/telesquare-skt-lte-router-sdt-cs3b1-csrf-system-command-execution Added Reference https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5443.php