Telesquare SDT-CS3B1 and SDT-CW3B1 devices through 1.2.0 have a default factory account.
Priority MEDIUM 46CWE-798Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-798.
Summary
Telesquare SDT-CS3B1 and SDT-CW3B1 devices through 1.2.0 have a default factory account. Remote attackers can obtain access to the device via TELNET using a hardcoded account.
Why it matters now
EPSS 0.02259 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:telesquare:sdt-cs3b1_firmware:*:*:*:*:*:*:*:* | up to 1.2.0 | Vulnerable | Telesquare |
| cpe:2.3:h:telesquare:sdt-cs3b1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Telesquare |
| cpe:2.3:o:telesquare:sdt-cw3b1_firmware:*:*:*:*:*:*:*:* | up to 1.2.0 | Vulnerable | Telesquare |
| cpe:2.3:h:telesquare:sdt-cw3b1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Telesquare |
- cpe:2.3:o:telesquare:sdt-cs3b1_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0 Vulnerable ·Telesquare
- cpe:2.3:h:telesquare:sdt-cs3b1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Telesquare
- cpe:2.3:o:telesquare:sdt-cw3b1_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0 Vulnerable ·Telesquare
- cpe:2.3:h:telesquare:sdt-cw3b1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Telesquare
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-12526
- 2026-10-03 Alias added: GHSA-w3c5-8x57-2gwg
References
More Telesquare Sdt-cs3b1 Firmware vulnerabilities
- TI-2021-21224 Telesquare SDT-CW3B1 1.1.0 is affected by an OS command injection vulnerability that… CVSS 3.1CRITICAL 9.8
- TI-2017-14290 Telesquare SKT LTE Router SDT-CS3B1 WebDAV Arbitrary File Upload CVSS 4.0CRITICAL 9.3
- TI-2017-14289 Telesquare SKT LTE Router SDT-CS3B1 Insecure Direct Object Reference CVSS 4.0CRITICAL 9.3
- TI-2017-14288 Telesquare SKT LTE Router SDT-CS3B1 Unauthenticated Remote Reboot CVSS 4.0HIGH 8.7
- TI-2017-14287 Telesquare SKT LTE Router SDT-CS3B1 CSRF System Command Execution CVSS 4.0MEDIUM 5.3
Sources
- CVE-2018-12526 · CVE Program
- CVE-2018-12526 · NVD
- FIRST EPSS
- GHSA-w3c5-8x57-2gwg · GitHub Advisory Database · CC BY 4.0
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