# CVE-2017-18767: Command injection in n/a

> Authenticated attackers can execute arbitrary commands on vulnerable NETGEAR routers via command injection flaws.

- **Severity:** Medium 6.8 (`CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Apr 2020
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-v8m2-2m5m-qrhp

## What is CVE-2017-18767?

CVE-2017-18767 is a medium-severity command injection vulnerability in Netgear D7800 Firmware, published on 22 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects D7800 before 1.0.1.34, D8500 before 1.0.3.39, R6400 before 1.0.1.14, R6400v2 before 1.0.2.32, R6700 before 1.0.1.22, R6900 before 1.0.1.22, R7000 before 1.0.9.4, R7100LG before 1.0.0.32, R7300 before 1.0.0.56, R7800 before 1.0.2.36, R7900 before 1.0.2.10, R8000 before 1.0.3.24, R8300 before 1.0.2.74, and R8500 before 1.0.2.74.

Weakness: CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2017-18767?

It affects 13 products.


Products: Netgear D7800 Firmware, Netgear D8500 Firmware, Netgear R6400 Firmware, Netgear R6700 Firmware, Netgear R6900 Firmware, Netgear R7000 Firmware, Netgear R7100lg Firmware, Netgear R7300 Firmware, Netgear R7800 Firmware, Netgear R7900 Firmware, Netgear R8000 Firmware, Netgear R8300 Firmware, Netgear R8500 Firmware.

## How do I fix CVE-2017-18767?

No fix has been published for CVE-2017-18767 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-18767 being exploited?

There is no known exploitation of CVE-2017-18767 in the wild and no public exploit code.

## Other vulnerabilities in Netgear D7800 Firmware

- [CVE-2021-45618](https://insights.sbomify.com/CVE-2021-45618/): Command injection in n/a (critical 9.6)
- [CVE-2021-34947](https://insights.sbomify.com/CVE-2021-34947/): NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability (high 8.8)
- [CVE-2022-27641](https://insights.sbomify.com/CVE-2022-27641/): Integer overflow in R6700v3 (high 8.8)
- [CVE-2020-26909](https://insights.sbomify.com/CVE-2020-26909/): Command injection in n/a (high 8.8)
- [CVE-2018-21202](https://insights.sbomify.com/CVE-2018-21202/): Memory corruption in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-18767 and fix it if it is affected.

What it is: CVE-2017-18767 is a medium-severity command injection vulnerability in Netgear D7800 Firmware, published on 22 Apr 2020. 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-2017-18767 in the wild and no public exploit code.

Affected product: Netgear D7800 Firmware. 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-2017-18767/ (Markdown: https://insights.sbomify.com/CVE-2017-18767/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-18767
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-18767
- OSV: https://osv.dev/vulnerability/CVE-2017-18767

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-18767/
Summaries are generated and may contain mistakes; the official description above is the record.