# CVE-2021-45515: Denial of service in n/a

> Attackers can cause a denial of service on various NETGEAR mesh Wi-Fi systems by exploiting a vulnerability in the firmware.

- **Severity:** Medium 6.5 (`CVSS:3.1/AC:L/AV:A/A:H/C:N/I:N/PR:N/S:U/UI:N`)
- **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:** 26 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-m98v-p9vf-rj56

## What is CVE-2021-45515?

CVE-2021-45515 is a medium-severity denial of service vulnerability in Netgear Rbk752 Firmware, published on 26 Dec 2021. 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 denial of service. This affects EX7500 before 1.0.0.72, RBS40V before 2.6.1.4, RBW30 before 2.6.1.4, RBRE960 before 6.0.3.68, RBSE960 before 6.0.3.68, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, and RBK852 before 3.2.17.12.

## Which versions are affected by CVE-2021-45515?

It affects 12 products.


Products: Netgear Ex7500 Firmware, Netgear Rbk752 Firmware, Netgear Rbk852 Firmware, Netgear Rbke963 Firmware, Netgear Rbr750 Firmware, Netgear Rbr850 Firmware, Netgear Rbre960 Firmware, Netgear Rbs40v Firmware, Netgear Rbs750 Firmware, Netgear Rbs850 Firmware, Netgear Rbse960 Firmware, Netgear Rbw30 Firmware.

## How do I fix CVE-2021-45515?

No fix has been published for CVE-2021-45515 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-45515 being exploited?

There is no known exploitation of CVE-2021-45515 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-45515 and fix it if it is affected.

What it is: CVE-2021-45515 is a medium-severity denial of service vulnerability in Netgear Rbk752 Firmware, published on 26 Dec 2021. 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-2021-45515 in the wild and no public exploit code.

Affected product: Netgear Rbk752 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-2021-45515/ (Markdown: https://insights.sbomify.com/CVE-2021-45515/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-45515
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45515
- OSV: https://osv.dev/vulnerability/CVE-2021-45515

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-45515/
Summaries are generated and may contain mistakes; the official description above is the record.