# CVE-2021-45649: Information disclosure in n/a

> Attackers can disclose sensitive information from vulnerable NETGEAR routers, requiring firmware upgrades to mitigate.

- **Severity:** High 7.9 (`CVSS:3.1/AC:L/AV:L/A:N/C:H/I:H/PR:H/S:C/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:** 26 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-vx29-rc7f-285v

## What is CVE-2021-45649?

CVE-2021-45649 is a high-severity vulnerability in Netgear R6900p 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 disclosure of sensitive information. This affects R6400v2 before 1.0.4.84, R6700v3 before 1.0.4.84, R7000 before 1.0.11.126, R6900P before 1.3.2.126, and R7000P before 1.3.2.126.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2021-45649?

It affects 5 products.


Products: Netgear R6400v2 Firmware, Netgear R6700v3 Firmware, Netgear R6900p Firmware, Netgear R7000 Firmware, Netgear R7000p Firmware.

## How do I fix CVE-2021-45649?

No fix has been published for CVE-2021-45649 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-45649 being exploited?

There is no known exploitation of CVE-2021-45649 in the wild and no public exploit code.

## Other vulnerabilities in Netgear R6900p Firmware

- [CVE-2020-35798](https://insights.sbomify.com/CVE-2020-35798/): Command injection in n/a (critical 9.3)
- [CVE-2021-45650](https://insights.sbomify.com/CVE-2021-45650/): Information disclosure in n/a (critical 9.1)
- [CVE-2021-45643](https://insights.sbomify.com/CVE-2021-45643/): Misconfiguration in n/a (high 8.2)
- [CVE-2021-40847](https://insights.sbomify.com/CVE-2021-40847/): Code injection in n/a (high 8.1)
- [CVE-2024-51010](https://insights.sbomify.com/CVE-2024-51010/): Command injection in n/a (high 8.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-45649 and fix it if it is affected.

What it is: CVE-2021-45649 is a high-severity vulnerability in Netgear R6900p 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-2021-45649 in the wild and no public exploit code.

Affected product: Netgear R6900p 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-2021-45649/ (Markdown: https://insights.sbomify.com/CVE-2021-45649/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-45649
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45649
- OSV: https://osv.dev/vulnerability/CVE-2021-45649

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-45649/
Summaries are generated and may contain mistakes; the official description above is the record.