# CVE-2026-4620: OS Command Injection vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to execute arbitrary OS commands via network.

Source: https://junglewise.ai/threats/cve-2026-4620-os-command-injection-vulnerability-in-nec-platforms-ltd-aterm  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-03-27  
License: CC BY 4.0 with a link back

CVE-2026-4620 · Severity: critical · CVSS 9.8 · Published 2026-03-27

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

Technologies: [Nec Aterm Wx1500hp](https://junglewise.ai/threats/technologies/aterm-wx1500hp), [Nec Aterm Wx1500hp Firmware](https://junglewise.ai/threats/technologies/aterm-wx1500hp-firmware), [Nec Aterm Wx3600hp](https://junglewise.ai/threats/technologies/aterm-wx3600hp), [Nec Aterm Wx3600hp Firmware](https://junglewise.ai/threats/technologies/aterm-wx3600hp-firmware). Vendors: [Nec](https://junglewise.ai/threats/vendors/nec).

## Quick answers

**Is CVE-2026-4620 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-4620 being exploited in the wild.

**How severe is CVE-2026-4620?** Critical severity, with a CVSS score of 9.8, published 27 March 2026.

**Which products and versions are affected?** Nec Aterm Wx1500hp, Nec Aterm Wx1500hp Firmware, Nec Aterm Wx3600hp, Nec Aterm Wx3600hp Firmware. The advisory does not name versions.

**Is there a fix for CVE-2026-4620?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-4620?** Check whether you run Nec Aterm Wx1500hp, Nec Aterm Wx1500hp Firmware, Nec Aterm Wx3600hp or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Nec Aterm Wx1500hp
- Nec Aterm Wx1500hp Firmware
- Nec Aterm Wx3600hp
- Nec Aterm Wx3600hp Firmware

## Related threats

- [Hidden Functionality vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to enable telnet via network.](https://junglewise.ai/threats/cve-2026-4621-hidden-functionality-vulnerability-in-nec-platforms-ltd-aterm)
- [Path Traversal vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to wtite over any file via network.](https://junglewise.ai/threats/cve-2026-4619-path-traversal-vulnerability-in-nec-platforms-ltd-aterm-series)
- [Missing Authorization vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to get a specific device…](https://junglewise.ai/threats/cve-2026-4309-missing-authorization-vulnerability-in-nec-platforms-ltd-aterm)