# CVE-2026-4622: Command injection in Aterm GB1200PE

> Attackers can execute arbitrary OS commands on NEC Aterm routers via the network, potentially compromising the device.

- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 27 Mar 2026
- **Updated:** 10 Apr 2026
- **Also known as:** GHSA-3p29-8vc6-r2ph

## What is CVE-2026-4622?

CVE-2026-4622 is a high-severity command injection vulnerability in NEC Platforms, Ltd. Aterm GB1200PE, published on 27 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

OS Command Injection vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to execute arbitrary OS commands via network.

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

## Which versions are affected by CVE-2026-4622?

It affects 9 products.


Products: Nec Aterm Gb1200pe Firmware, Nec Aterm Wf1200cr Firmware, Nec Aterm Wg1200cr Firmware, Nec Aterm Wg2600hm4 Firmware, Nec Aterm Wg2600hp4 Firmware, Nec Aterm Wg2600hs2 Firmware, Nec Aterm Wg2600hs Firmware, Nec Aterm Wx3000hp2 Firmware, Nec Aterm Wx3000hp Firmware.

## How do I fix CVE-2026-4622?

No fix has been published for CVE-2026-4622 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-4622 being exploited?

There is no known exploitation of CVE-2026-4622 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-4622 and fix it if it is affected.

What it is: CVE-2026-4622 is a high-severity command injection vulnerability in NEC Platforms, Ltd. Aterm GB1200PE, published on 27 Mar 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-4622 in the wild and no public exploit code.

Affected product: NEC Platforms, Ltd. Aterm GB1200PE. 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-2026-4622/ (Markdown: https://insights.sbomify.com/CVE-2026-4622/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-4622
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4622
- OSV: https://osv.dev/vulnerability/CVE-2026-4622

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-4622/
Summaries are generated and may contain mistakes; the official description above is the record.