# CVE-2026-11739: Command injection vulnerability in some NETGEAR Nighthawk devices

> A network-adjacent attacker can execute arbitrary commands on NETGEAR Nighthawk devices by intercepting and modifying local network traffic.

- **Severity:** Medium 4.9 (`CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:L/U:Amber`)
- **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:** 11 Aug 2026
- **Updated:** 12 Aug 2026
- **Also known as:** GHSA-g2h4-h77j-p83h

## What is CVE-2026-11739?

CVE-2026-11739 is a medium-severity command injection vulnerability in Netgear Rax200 Firmware, published on 11 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A command injection vulnerability in certain affected NETGEAR Nighthawk 
devices allows a network-adjacent attacker with the ability to intercept
 and modify local network traffic (attacker in the middle) to compromise
 the confidentiality and integrity of the affected device.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2026-11739?

It affects 27 products.


Products: Netgear Mr60 Firmware, Netgear Mr70 Firmware, Netgear Mr90 Firmware, Netgear Ms60 Firmware, Netgear Ms70 Firmware, Netgear Ms90 Firmware, Netgear Rax200 Firmware, Netgear Rax20 Firmware, Netgear Rax35 Firmware, Netgear Rax35v2 Firmware, Netgear Rax41 Firmware, Netgear Rax41v2 Firmware, Netgear Rax42 Firmware, Netgear Rax42v2 Firmware, Netgear Rax43 Firmware, Netgear Rax43v2 Firmware, Netgear Rax45 Firmware, Netgear Rax49s Firmware, Netgear Rax50 Firmware, Netgear Rax50v2 Firmware and 7 more.

## How do I fix CVE-2026-11739?

No fix has been published for CVE-2026-11739 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11739 being exploited?

There is no known exploitation of CVE-2026-11739 in the wild and no public exploit code.

## Other vulnerabilities in Netgear Rax200 Firmware

- [CVE-2022-48322](https://insights.sbomify.com/CVE-2022-48322/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-45539](https://insights.sbomify.com/CVE-2021-45539/): Command injection in n/a (high 8.4)
- [CVE-2021-45540](https://insights.sbomify.com/CVE-2021-45540/): Command injection in n/a (high 8.4)
- [CVE-2021-45541](https://insights.sbomify.com/CVE-2021-45541/): Command injection in n/a (high 8.4)
- [CVE-2022-48176](https://insights.sbomify.com/CVE-2022-48176/): Memory corruption in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11739 and fix it if it is affected.

What it is: CVE-2026-11739 is a medium-severity command injection vulnerability in Netgear Rax200 Firmware, published on 11 Aug 2026. 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-2026-11739 in the wild and no public exploit code.

Affected product: Netgear Rax200 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-2026-11739/ (Markdown: https://insights.sbomify.com/CVE-2026-11739/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11739
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11739
- OSV: https://osv.dev/vulnerability/CVE-2026-11739

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11739/
Summaries are generated and may contain mistakes; the official description above is the record.