# CVE-2017-6862: NETGEAR Multiple Devices Buffer Overflow

> Attackers can bypass authentication and execute arbitrary code on NETGEAR WNR2000 routers via a buffer overflow in the administration web interface.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Yes, since 8 Jun 2022 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 May 2017
- **Updated:** 21 Oct 2025
- **Also known as:** GHSA-xjjj-92c2-q84f

## What is CVE-2017-6862?

CVE-2017-6862 is a critical memory corruption vulnerability in Netgear Wnr2000 Firmware, published on 26 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

NETGEAR WNR2000v3 devices before 1.1.2.14, WNR2000v4 devices before 1.0.0.66, and WNR2000v5 devices before 1.0.0.42 allow authentication bypass and remote code execution via a buffer overflow that uses a parameter in the administration webapp. The NETGEAR ID is PSV-2016-0261.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2017-6862?

It affects 1 product.


Products: Netgear Wnr2000 Firmware.

## How do I fix CVE-2017-6862?

No fix has been published for CVE-2017-6862 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 22 Jun 2022.

## Is CVE-2017-6862 being exploited?

Yes. Attackers have exploited CVE-2017-6862 in the wild since at least 8 Jun 2022.

## Other vulnerabilities in Netgear Wnr2000 Firmware

- [CVE-2023-50089](https://insights.sbomify.com/CVE-2023-50089/): Command injection in n/a (critical 9.8)
- [CVE-2022-46423](https://insights.sbomify.com/CVE-2022-46423/): File upload in n/a (high 8.1)
- [CVE-2019-5054](https://insights.sbomify.com/CVE-2019-5054/): Null dereference in N300 WNR2000v5 (high 7.5)
- [CVE-2019-5055](https://insights.sbomify.com/CVE-2019-5055/): Null dereference in N300 WNR2000v5 (high 7.5)
- [CVE-2022-46422](https://insights.sbomify.com/CVE-2022-46422/): Denial of service in n/a (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-6862 and fix it if it is affected.

What it is: CVE-2017-6862 is a critical memory corruption vulnerability in Netgear Wnr2000 Firmware, published on 26 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2017-6862 in the wild since at least 8 Jun 2022.

Affected product: Netgear Wnr2000 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-2017-6862/ (Markdown: https://insights.sbomify.com/CVE-2017-6862/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-6862
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-6862
- OSV: https://osv.dev/vulnerability/CVE-2017-6862

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-6862/
Summaries are generated and may contain mistakes; the official description above is the record.