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.