CVE-2017-20221

5.3 mediumEPSS 0.3%

Medium (5.3) in telesquare sdt-cs3b1 firmware. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.3 medium

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

CVSS 3.1

3.5 low

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
CWE: CWE-352
Published: 2026-03-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

telesquare:sdt-cs3b1_firmware

References

https://cxsecurity.com/issue/WLB-2017120299
https://exchange.xforce.ibmcloud.com/vulnerabilities/136839
https://packetstormsecurity.com/files/145550
https://www.exploit-db.com/exploits/43400/
https://www.vulncheck.com/advisories/telesquare-skt-lte-router-sdt-cs3b1-csrf-system-command-execution

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