Sixnet BT-5xxx and BT-6xxx M2M devices before 3.8.21 and 3.9.x before 3.9.8 have…
Priority MEDIUM 47CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- 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-200.
Summary
Sixnet BT-5xxx and BT-6xxx M2M devices before 3.8.21 and 3.9.x before 3.9.8 have hardcoded credentials, which allows remote attackers to obtain access via unspecified vectors.
Why it matters now
EPSS 0.02465 84th 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:h:sixnet:bt-5_series_cellular_router:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Sixnet |
| cpe:2.3:h:sixnet:bt-6_series_cellular_router:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Sixnet |
| cpe:2.3:o:sixnet:bt-5_series_cellular_router_firmware:*:*:*:*:*:*:*:* | up to 3.8.20; up to 3.9.7 | Vulnerable | Sixnet |
| cpe:2.3:o:sixnet:bt-6_series_cellular_router_firmware:*:*:*:*:*:*:*:* | up to 3.8.20; up to 3.9.7 | Vulnerable | Sixnet |
- cpe:2.3:h:sixnet:bt-5_series_cellular_router:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Sixnet
- cpe:2.3:h:sixnet:bt-6_series_cellular_router:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Sixnet
- cpe:2.3:o:sixnet:bt-5_series_cellular_router_firmware:*:*:*:*:*:*:*:* Versions up to 3.8.20; up to 3.9.7 Vulnerable ·Sixnet
- cpe:2.3:o:sixnet:bt-6_series_cellular_router_firmware:*:*:*:*:*:*:*:* Versions up to 3.8.20; up to 3.9.7 Vulnerable ·Sixnet
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-4521
- 2026-10-03 Alias added: GHSA-r562-xjg8-354h
References
Sources
- CVE-2016-4521 · CVE Program
- CVE-2016-4521 · NVD
- FIRST EPSS
- GHSA-r562-xjg8-354h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences