Is CVE-2026-39453 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-39453 being exploited in the wild.

How severe is CVE-2026-39453?

High severity, with a CVSS score of 6, published 9 October 2026.

Which products and versions are affected?

Red Lion Controls N-Tron 700 Series Firmware 3.11.0 and earlier; Bootloader 2.0.6.1 and earlier.

Is there a fix for CVE-2026-39453?

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-2026-39453 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-39453?

Check whether you run Red Lion Controls N-Tron 700 Series at an affected version. 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.

CVE-2026-39453: Default factory credentials with administrative access are enabled and persist even after configuring other administrator accounts.

CVE-2026-39453 · Severity: high · CVSS 6 · Published 2026-10-09

Red Lion Controls N-Tron 700 Series is an industrial network switch used in critical infrastructure. Multiple vulnerabilities allow unauthenticated attackers to gain administrative access, modify configuration files, and remotely reboot the device. An attacker could exploit this to disrupt production operations, cause cascading outages across connected systems, or persist backdoors in network infrastructure.

Technologies: Red Lion Controls N-Tron 700 Series. Vendors: Red Lion Controls.

Quick answers

Is CVE-2026-39453 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-39453 being exploited in the wild.
How severe is CVE-2026-39453?: High severity, with a CVSS score of 6, published 9 October 2026.
Which products and versions are affected?: Red Lion Controls N-Tron 700 Series Firmware 3.11.0 and earlier; Bootloader 2.0.6.1 and earlier.
Is there a fix for CVE-2026-39453?: 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-2026-39453 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-39453?: Check whether you run Red Lion Controls N-Tron 700 Series at an affected version. 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

Seven distinct vulnerabilities in the N-Tron 700 Series firmware and bootloader allow unauthenticated network access to administrative functions, including configuration file access and device reboot capabilities. The vulnerabilities can be exploited remotely over the network to achieve full administrative control or trigger denial of service via scripted reboots. No authentication or user interaction is required.

Affected products

Red Lion Controls N-Tron 700 Series Firmware 3.11.0 and earlier; Bootloader 2.0.6.1 and earlier

Identifiers

CVE-2026-39453
CVE-2026-39460
CVE-2026-33367
CVE-2026-29797
CVE-2026-32645
CVE-2026-28745
CVE-2026-33272

Timeline

2026-10-08: disclosed

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