Missing authentication in Hughes Satellite Modem HN7740S
Priority LOW 31CWE-306Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-306.
Summary
Hughes high-performance broadband satellite modems, models HN7740S DW7000 HN7000S/SM, lacks authentication. An unauthenticated user may send an HTTP GET request to http://[ip]/com/gatewayreset or http://[ip]/cgi/reboot.bin to cause the modem to reboot.
Why it matters now
EPSS 0.00901 59th 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 |
|---|---|---|---|---|---|
| Hughes Satellite Modem | HN7740S | — | — | No fix listed | CNA |
| Hughes Satellite Modem | DW7000 | — | — | No fix listed | CNA |
| Hughes Satellite Modem | HN7000S/SM | — | — | No fix listed | CNA |
- HN7740S VendorHughes Satellite Modem Affected — Fixed in — No fix listed CNA
- DW7000 VendorHughes Satellite Modem Affected — Fixed in — No fix listed CNA
- HN7000S/SM VendorHughes Satellite Modem Affected — Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:hughes:hn7740s_firmware:6.9.0.34:*:*:*:*:*:*:* | 6.9.0.34 | Vulnerable | Hughes Satellite Modem |
| cpe:2.3:h:hughes:hn7740s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Hughes Satellite Modem |
| cpe:2.3:o:hughes:dw7000_firmware:6.9.0.34:*:*:*:*:*:*:* | 6.9.0.34 | Vulnerable | Hughes Satellite Modem |
| cpe:2.3:h:hughes:dw7000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Hughes Satellite Modem |
| cpe:2.3:o:hughes:hn7000s_firmware:6.9.0.34:*:*:*:*:*:*:* | 6.9.0.34 | Vulnerable | Hughes Satellite Modem |
| cpe:2.3:h:hughes:hn7000s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Hughes Satellite Modem |
| cpe:2.3:o:hughes:hn7000sm_firmware:6.9.0.34:*:*:*:*:*:*:* | 6.9.0.34 | Vulnerable | Hughes Satellite Modem |
| cpe:2.3:h:hughes:hn7000sm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Hughes Satellite Modem |
- cpe:2.3:o:hughes:hn7740s_firmware:6.9.0.34:*:*:*:*:*:*:* Versions 6.9.0.34 Vulnerable ·Hughes Satellite Modem
- cpe:2.3:h:hughes:hn7740s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hughes Satellite Modem
- cpe:2.3:o:hughes:dw7000_firmware:6.9.0.34:*:*:*:*:*:*:* Versions 6.9.0.34 Vulnerable ·Hughes Satellite Modem
- cpe:2.3:h:hughes:dw7000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hughes Satellite Modem
- cpe:2.3:o:hughes:hn7000s_firmware:6.9.0.34:*:*:*:*:*:*:* Versions 6.9.0.34 Vulnerable ·Hughes Satellite Modem
- cpe:2.3:h:hughes:hn7000s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hughes Satellite Modem
- cpe:2.3:o:hughes:hn7000sm_firmware:6.9.0.34:*:*:*:*:*:*:* Versions 6.9.0.34 Vulnerable ·Hughes Satellite Modem
- cpe:2.3:h:hughes:hn7000sm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hughes Satellite Modem
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-9496
- 2026-10-03 Alias added: GHSA-jh2c-pmq9-ggrc
References
Advisory 1
More Hughes Satellite Modem Dw7000 Firmware vulnerabilities
- TI-2016-07763 Authentication bypass in Hughes Satellite Modem HN7740S CVSS 3.0HIGH 8.8
- TI-2016-07761 Hard-coded credentials in Hughes Satellite Modem HN7740S CVSS 3.0HIGH 8.8
- TI-2016-07760 Improper input validation in Hughes Satellite Modem HN7740S CVSS 3.0MEDIUM 6.5
Sources
- CVE-2016-9496 · CVE Program
- CVE-2016-9496 · NVD
- FIRST EPSS
- GHSA-jh2c-pmq9-ggrc · 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