# CVE-2020-35227: Memory corruption in n/a

> A buffer overflow in the NETGEAR switch admin panel allows attackers to inject IP addresses, potentially leading to code execution or privilege escalation.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Mar 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-9h3q-pv83-f47p

## What is CVE-2020-35227?

CVE-2020-35227 is a high-severity memory corruption vulnerability in n/a, published on 10 Mar 2021. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A buffer overflow vulnerability in the access control section on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices (in the administration web panel) allows an attacker to inject IP addresses into the whitelist via the checkedList parameter to the delete command.

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

## Which versions are affected by CVE-2020-35227?

It affects 2 products.


Products: Netgear Gs116e Firmware, Netgear Jgs516pe Firmware.

## How do I fix CVE-2020-35227?

No fix has been published for CVE-2020-35227 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-35227 being exploited?

There is no known exploitation of CVE-2020-35227 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-35221](https://insights.sbomify.com/CVE-2020-35221/): Weak cryptography in n/a (high 8.8)
- [CVE-2020-35223](https://insights.sbomify.com/CVE-2020-35223/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2020-35229](https://insights.sbomify.com/CVE-2020-35229/): Auth bypass in n/a (high 8.8)
- [CVE-2020-35231](https://insights.sbomify.com/CVE-2020-35231/): Auth bypass in n/a (high 8.8)
- [CVE-2020-35801](https://insights.sbomify.com/CVE-2020-35801/): Misconfiguration in n/a (high 8.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-35227 and fix it if it is affected.

What it is: CVE-2020-35227 is a high-severity memory corruption vulnerability in n/a, published on 10 Mar 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-35227 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-2020-35227/ (Markdown: https://insights.sbomify.com/CVE-2020-35227/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-35227
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-35227
- OSV: https://osv.dev/vulnerability/CVE-2020-35227

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-35227/
Summaries are generated and may contain mistakes; the official description above is the record.