# CVE-2019-20716: Memory corruption in n/a

> Unauthenticated attackers can exploit a stack-based buffer overflow in NETGEAR routers to execute arbitrary code.

- **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:** 16 Apr 2020
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-p7mh-mqrg-wx2f

## What is CVE-2019-20716?

CVE-2019-20716 is a medium-severity memory corruption vulnerability in n/a, published on 16 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 a stack-based buffer overflow by an unauthenticated attacker. This affects DGN2200v4 before 1.0.0.110 and DGND2200Bv4 before 1.0.0.109.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2019-20716?

It affects 2 products.


Products: Netgear Dgn2200 Firmware, Netgear Dgnd2200b Firmware.

## How do I fix CVE-2019-20716?

No fix has been published for CVE-2019-20716 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-20716 being exploited?

There is no known exploitation of CVE-2019-20716 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2017-6077](https://insights.sbomify.com/CVE-2017-6077/): NETGEAR DGN2200 Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-17373](https://insights.sbomify.com/CVE-2019-17373/): Auth bypass in n/a (critical 9.8)
- [CVE-2016-5649](https://insights.sbomify.com/CVE-2016-5649/): Netgear DGN2200 and DGND3700 disclose the administrator password (critical 9.8)
- [CVE-2024-57046](https://insights.sbomify.com/CVE-2024-57046/): Auth bypass in n/a (high 8.8)
- [CVE-2017-18755](https://insights.sbomify.com/CVE-2017-18755/): Cross-site request forgery in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-20716 and fix it if it is affected.

What it is: CVE-2019-20716 is a medium-severity memory corruption vulnerability in n/a, published on 16 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-2019-20716 in the wild and no public exploit code.

Affected product: n/a. 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-2019-20716/ (Markdown: https://insights.sbomify.com/CVE-2019-20716/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-20716
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-20716
- OSV: https://osv.dev/vulnerability/CVE-2019-20716

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-20716/
Summaries are generated and may contain mistakes; the official description above is the record.