MEDIUM
CVE-2017-20221
CWE-352Published: March 16, 2026· Updated: Mar 16, 2026
4.3
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:4.0th
Official 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.
Technical Analysis
CVE-2017-20221 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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Rapid7 / Metasploit
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PacketStorm
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NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (6)
Quick Facts
CVE IDCVE-2017-20221
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-352
CISA KEVNo
EPSS (30d)0.02%
PublishedMar 16, 2026
Related CVEs (CWE-352)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2017-20221 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.