CVE-2016-9496
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedHughes 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThis is an authentication bypass vulnerability in Hughes satellite modem models HN7740S, DW7000, and HN7000S/SM. The devices lack authentication controls on specific HTTP endpoints (/com/gatewayreset and /cgi/reboot.bin), allowing any unauthenticated remote attacker to cause device reboot via a simple HTTP GET request.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 6.9.0.34= 6.9.0.34= 6.9.0.34= 6.9.0.34CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the Hughes modem modelAccess the device admin interface or check the device label to determine if the model is HN7740S, DW7000, HN7000S, or HN7000SMAffected if The device model is NOT one of HN7740S, DW7000, HN7000S, or HN7000SM (not affected)
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Check the firmware versionLog into the device admin panel and locate the firmware or software version information, typically found in System, Status, or About sectionsAffected if The firmware version is exactly 6.9.0.34 (affected)
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Test access to the /com/gatewayreset endpointSend an HTTP GET request to http://[device-ip]/com/gatewayreset without providing any authentication credentialsAffected if The request succeeds and returns a valid HTTP response (indicating no authentication required, the device is affected)
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Test access to the /cgi/reboot.bin endpointSend an HTTP GET request to http://[device-ip]/cgi/reboot.bin without providing any authentication credentialsAffected if The request succeeds and triggers a device reboot or returns a valid response without authentication (the device is affected)
If the device is a Hughes HN7740S, DW7000, HN7000S, or HN7000SM running firmware 6.9.0.34 and the /com/gatewayreset or /cgi/reboot.bin endpoints are accessible without authentication, the environment is affected by this CVE.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataNetwork access to these devices should be restricted through firewall rules or network segmentation. Contact Hughes for available firmware updates that address this authentication bypass.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2016-9496 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2016-9496 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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