# CVE-2021-45496: Auth bypass in n/a

> Attackers can bypass authentication on NETGEAR D7000 routers, gaining unauthorized access to the device interface.

- **Severity:** Critical 9.1 (`CVSS:3.1/AC:L/AV:N/A:N/C:H/I:H/PR:N/S:U/UI:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-j2c7-27m6-r852

## What is CVE-2021-45496?

CVE-2021-45496 is a critical authentication bypass vulnerability in Netgear D7000 Firmware, published on 26 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

NETGEAR D7000 devices before 1.0.1.82 are affected by authentication bypass.

## Which versions are affected by CVE-2021-45496?

It affects 1 product.


Products: Netgear D7000 Firmware.

## How do I fix CVE-2021-45496?

No fix has been published for CVE-2021-45496 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-45496 being exploited?

There is no known exploitation of CVE-2021-45496 in the wild and no public exploit code.

## Other vulnerabilities in Netgear D7000 Firmware

- [CVE-2021-45497](https://insights.sbomify.com/CVE-2021-45497/): Auth bypass in n/a (critical 9.4)
- [CVE-2018-21169](https://insights.sbomify.com/CVE-2018-21169/): Misconfiguration in n/a (high 8.8)
- [CVE-2017-18791](https://insights.sbomify.com/CVE-2017-18791/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2021-45512](https://insights.sbomify.com/CVE-2021-45512/): Weak cryptography in n/a (high 8.6)
- [CVE-2017-18843](https://insights.sbomify.com/CVE-2017-18843/): Information disclosure in n/a (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-45496 and fix it if it is affected.

What it is: CVE-2021-45496 is a critical authentication bypass vulnerability in Netgear D7000 Firmware, published on 26 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-45496 in the wild and no public exploit code.

Affected product: Netgear D7000 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-2021-45496/ (Markdown: https://insights.sbomify.com/CVE-2021-45496/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-45496
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45496
- OSV: https://osv.dev/vulnerability/CVE-2021-45496

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-45496/
Summaries are generated and may contain mistakes; the official description above is the record.