CVE-2017-20221 json
Telesquare SKT LTE Router SDT-CS3B1 CSRF System Command Execution
published 2026-03-16 7 mo ago modified 2026-06-17 4 mo ago also EUVD-2017-18936
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 22%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- packetstormsecurity.com https://packetstormsecurity.com/files/145550 referenced PoC, tagged "exploit" by a source, unverified
- exploit-db.com https://www.exploit-db.com/exploits/43400/ referenced PoC, tagged "exploit" by a source, unverified
- zeroscience.mk https://www.zeroscience.mk/en/vulnerabilities/ZSL-2017-5443.php referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| CNA | 4.0 | 5.3 | CVSS:4.0/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 |
| NVD | 3.1 | 3.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N |
Affected products
- Telesquare SDT-CS3B1
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
References
-
packetstormsecurity.com
/files/145550
exploit, third-party-advisory
-
exploit-db.com
/exploits/43400/
exploit, vdb-entry
-
zeroscience.mk
/en/vulnerabilities/ZSL-2017-5443.php
third-party-advisory, exploit
-
cxsecurity.com
/issue/WLB-2017120299
third-party-advisory, issue-tracking
-
exchange.xforce.ibmcloud.com
/vulnerabilities/136839
vdb-entry, third-party-advisory
-
vulncheck.com
/advisories/telesquare-skt-lte-router-sdt-cs3b1-csrf-system-command-execution
third-party-advisory
Sources
- CVE List CVE-2017-20221
- NVD CVE-2017-20221
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.