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CVE-2026-39460

Red Lion Controls N-Tron 700 Series Insufficiently Protected Credentials

Usernames and passwords, including the default factory credentials, are stored in plaintext within the configuration file. With administrator rights, the configuration file can be viewed through the CLI or they can be exported from the device through a TFTP transfer from the web interface. A TFTP transfer can be initiated through SNMP which does not require authentication.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Red Lion Controls
Products
700 Series
CVE-2026-32645

Red Lion Controls N-Tron 700 Series Use of Hard-Coded Credentials

Default factory credentials with administrative access are enabled and persist even after configuring other administrator accounts.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
Vendors
Red Lion Controls
Products
700 Series
CVE-2026-39453

Red Lion Controls N-Tron 700 Series Reachable Assertion

Navigating to a certain URL on the switch’s web server causes the switch to reboot. This can be automated using a tool like curl to create DoS conditions where the switch constantly reboots.

CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Vendors
Red Lion Controls
Products
700 Series
CVE-2026-33367

Red Lion Controls N-Tron 700 Series Missing Authentication for Critical Function

SNMP can be used to perform administrative actions such as retrieving configuration files, modifying user accounts or device settings, and initiating firmware or bootloader upgrades or downgrades—all without any authentication.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Red Lion Controls
Products
700 Series
CVE-2026-33272

Red Lion Controls N-Tron 700 Series Authentication Bypass Using an Alternate Path or Channel

A malicious user with physical access to the device can boot the switch from factory settings without authentication, use the default administrative credentials to obtain administrative access, and save changes to the configuration file so that they persist next time the switch boots normally.

CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Red Lion Controls
Products
700 Series
CVE-2026-29797

Red Lion Controls N-Tron 700 Series Download of Code Without Integrity Check

No authentication is required when updating firmware or bootloader, making it easy for malicious files to be pushed to the device. Additionally, anyone with the same software can scan a network for N-Tron devices and push/pull firmware without authenticating by using SNMP/TFTP.

CVSS 4.0 · 8.4 High EPSS < 1% KEV · Not listed
Vendors
Red Lion Controls
Products
700 Series
CVE-2026-28745

Red Lion Controls N-Tron 700 Series Storing Passwords in a Recoverable Format

Usernames and passwords, including the default credentials, are stored in the configuration file using weak encryption. If the default credentials are known by a malicious user, they could obtain other credentials on the system.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Red Lion Controls
Products
700 Series