# CVE-2021-45648: Information disclosure in n/a

> Attackers can access sensitive information from various NETGEAR WiFi extenders and routers, requiring firmware updates to mitigate.

- **Severity:** Low 3.1 (`CVSS:3.1/AC:H/AV:A/A:N/C:L/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-hhm5-85r6-q9w9

## What is CVE-2021-45648?

CVE-2021-45648 is a low-severity vulnerability in Netgear Rbk50 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 EX6100v2 before 1.0.1.106, EX6150v2 before 1.0.1.106, EX6250 before 1.0.0.146, EX6400 before 1.0.2.164, EX6400v2 before 1.0.0.146, EX6410 before 1.0.0.146, EX6420 before 1.0.0.146, EX7300 before 1.0.2.164, EX7300v2 before 1.0.0.146, EX7320 before 1.0.0.146, EX7700 before 1.0.0.222, LBR1020 before 2.6.5.16, LBR20 before 2.6.5.2, RBK352 before 4.3.4.7, RBK50 before 2.7.3.22, RBR350 before 4.3.4.7, RBR50 before 2.7.3.22, and RBS350 before 4.3.4.7.

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

## Which versions are affected by CVE-2021-45648?

It affects 18 products.


Products: Netgear Ex6100v2 Firmware, Netgear Ex6150v2 Firmware, Netgear Ex6250 Firmware, Netgear Ex6400 Firmware, Netgear Ex6400v2 Firmware, Netgear Ex6410 Firmware, Netgear Ex6420 Firmware, Netgear Ex7300 Firmware, Netgear Ex7300v2 Firmware, Netgear Ex7320 Firmware, Netgear Ex7700 Firmware, Netgear Lbr1020 Firmware, Netgear Lbr20 Firmware, Netgear Rbk352 Firmware, Netgear Rbk50 Firmware, Netgear Rbr350 Firmware, Netgear Rbr50 Firmware, Netgear Rbs350 Firmware.

## How do I fix CVE-2021-45648?

No fix has been published for CVE-2021-45648 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-45648 being exploited?

There is no known exploitation of CVE-2021-45648 in the wild and no public exploit code.

## Other vulnerabilities in Netgear Rbk50 Firmware

- [CVE-2021-45619](https://insights.sbomify.com/CVE-2021-45619/): Command injection in n/a (critical 9.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-45648 and fix it if it is affected.

What it is: CVE-2021-45648 is a low-severity vulnerability in Netgear Rbk50 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-2021-45648 in the wild and no public exploit code.

Affected product: Netgear Rbk50 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-2021-45648/ (Markdown: https://insights.sbomify.com/CVE-2021-45648/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-45648
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45648
- OSV: https://osv.dev/vulnerability/CVE-2021-45648

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-45648/
Summaries are generated and may contain mistakes; the official description above is the record.