Quick answers
- Is CVE-2026-6059 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-6059 being exploited in the wild.
- How severe is CVE-2026-6059?
- Informational severity, with a CVSS score of 4.8, published 25 May 2026.
- Which products and versions are affected?
- NEC Aterm.
- Is there a fix for CVE-2026-6059?
- 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.
- How is CVE-2026-6059 attacked?
- It is attacked from the adjacent network, in a network appliance.
- Am I affected by CVE-2026-6059?
- Check whether you run Nec Aterm. 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.
Technical details
A cross-site scripting (XSS) vulnerability (CWE-79) exists in the web management interface of NEC Aterm devices. The flaw stems from improper neutralization of user-supplied input during web page generation. An attacker located on the adjacent network can exploit this by inducing a user to access a malicious link or page while interacting with the management console. Successful exploitation allows the execution of arbitrary JavaScript in the context of the victim's browser session, potentially leading to session hijacking or unauthorized configuration changes. The vulnerability requires user interaction and is reachable via the adjacent network vector.
Affected products
- NEC Aterm
Timeline
- 2026-05-25: advisory: Initial disclosure by NEC Corporation