# CVE-2016-9494: Denial of service in DW7000

> Attackers can cause denial of service on Hughes satellite modems by sending malformed GET requests to the advanced status web page.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Jul 2018
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-2qhr-9g3c-c9f6

## What is CVE-2016-9494?

CVE-2016-9494 is a medium-severity denial of service vulnerability in Hughes Satellite Modem DW7000, published on 13 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Hughes high-performance broadband satellite modems, models HN7740S DW7000 HN7000S/SM, are potentially vulnerable to improper input validation. The device's advanced status web page that is linked to from the basic status web page does not appear to properly parse malformed GET requests. This may lead to a denial of service.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2016-9494?

It affects 4 products.


Products: Hughes Dw7000 Firmware, Hughes Hn7000s Firmware, Hughes Hn7000sm Firmware, Hughes Hn7740s Firmware.

## How do I fix CVE-2016-9494?

No fix has been published for CVE-2016-9494 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-9494 being exploited?

There is no known exploitation of CVE-2016-9494 in the wild and no public exploit code.

## Other vulnerabilities in Hughes Satellite Modem DW7000

- [CVE-2016-9495](https://insights.sbomify.com/CVE-2016-9495/): Hughes high-performance broadband satellite modems, models HN7740S DW7000 HN7000S/SM, uses hard coded credentials (high 8.8)
- [CVE-2016-9497](https://insights.sbomify.com/CVE-2016-9497/): Auth bypass in DW7000 (high 8.8)
- [CVE-2016-9496](https://insights.sbomify.com/CVE-2016-9496/): Missing authorization in DW7000 (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-9494 and fix it if it is affected.

What it is: CVE-2016-9494 is a medium-severity denial of service vulnerability in Hughes Satellite Modem DW7000, published on 13 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-9494 in the wild and no public exploit code.

Affected product: Hughes Satellite Modem DW7000. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2016-9494/ (Markdown: https://insights.sbomify.com/CVE-2016-9494/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-9494
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-9494
- OSV: https://osv.dev/vulnerability/CVE-2016-9494

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-9494/
Summaries are generated and may contain mistakes; the official description above is the record.