Red Lion Controls N-Tron 700 Series
Multiple critical vulnerabilities found in Red Lion Controls N-Tron 700 Series industrial switches.
Summary
Red Lion Controls N-Tron 700 Series industrial switches are affected by multiple critical vulnerabilities. These flaws allow for unauthorized administrative access, viewing and editing of configuration files, and can be exploited to cause continuous reboots of the device. The vulnerabilities stem from issues like hard-coded credentials, insecure storage of credentials, and missing authentication for critical functions.
Full text
ICS Advisory Red Lion Controls N-Tron 700 Series Release DateOctober 08, 2026 Alert CodeICSA-26-281-01 Related topics: Industrial Control System Vulnerabilities , Industrial Control Systems View CSAF Summary Successful exploitation of these vulnerabilities could allow a malicious user to access the device and gain administrative access. This access would allow the user to view, edit, and upload configuration files. Further, a malicious user can cause the switch to reboot by navigating to a specific URL on the device. This action can be scripted on the malicious user's local machine to cause continuous rebooting of the switch. The following versions of Red Lion Controls N-Tron 700 Series are affected: 700 Series <=Firmware_3.11.0 (CVE-2026-32645, CVE-2026-39460, CVE-2026-28745, CVE-2026-33367, CVE-2026-29797, CVE-2026-39453, CVE-2026-33272) 700 Series <=Bootloader_2.0.6.1 (CVE-2026-32645, CVE-2026-39460, CVE-2026-28745, CVE-2026-33367, CVE-2026-29797, CVE-2026-39453, CVE-2026-33272) CVSS Vendor Equipment v3 8.3 Red Lion Controls 700 Series 7 Vulnerabilities Use of Hard-coded Credentials, Insufficiently Protected Credentials, Storing Passwords in a Recoverable Format, Missing Authentication for Critical Function, Download of Code Without Integrity Check, Reachable Assertion, Authentication Bypass Using an Alternate Path or Channel Background Critical Infrastructure Sectors: Commercial Facilities, Communications, Critical Manufacturing, Information Technology Countries/Areas Deployed: Worldwide Company Headquarters Location: Sweden Vulnerabilities Expand All + CVE-2026-32645 Default factory credentials with administrative access are enabled and persist even after configuring other administrator accounts. Read More 2 Affected Products Red Lion Controls 700 Series: <=Firmware_3.11.0 Product Status: known_affected Remediations Vendor fixRed Lion controls recommends the following upgrades for the N-Tron 700 Series: MitigationUpgrade to firmware version 3.11.1 or greater MitigationConfigure or disable the SNMP communities MitigationDisable access to the web GUI MitigationThe upgrade procedure document can be viewed here.. MitigationThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here Red Lion Controls 700 Series: <=Bootloader_2.0.6.1 Product Status: known_affected Remediations Vendor fixRed Lion controls recommends the following upgrades for the N-Tron 700 Series: MitigationUpgrade to firmware version 3.11.1 or greater MitigationConfigure or disable the SNMP communities MitigationDisable access to the web GUI MitigationThe upgrade procedure document can be viewed here.. MitigationThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here Additional Metrics Relevant CWE: CWE-798 Use of Hard-coded Credentials CVSS Version Base Score Base Severity Vector String 3.1 6 MEDIUM CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N 4.0 9.2 CRITICAL CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N View CVE Details CVE-2026-39460 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. Read More 4 Affected Products Red Lion Controls 700 Series: <=Firmware_3.11.0 Product Status: known_affected Remediations Vendor fixRed Lion controls recommends the following upgrades for the N-Tron 700 Series: MitigationUpgrade to firmware version 3.11.1 or greater MitigationConfigure or disable the SNMP communities MitigationDisable access to the web GUI MitigationThe upgrade procedure document can be viewed here.. MitigationThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here Red Lion Controls 700 Series: <=Bootloader_2.0.6.1 Product Status: known_affected Remediations Vendor fixRed Lion controls recommends the following upgrades for the N-Tron 700 Series: MitigationUpgrade to firmware version 3.11.1 or greater MitigationConfigure or disable the SNMP communities MitigationDisable access to the web GUI MitigationThe upgrade procedure document can be viewed here.. MitigationThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here Red Lion Controls 700 Series: <=Firmware_3.11.0 Product Status: known_affected Remediations Vendor fixRed Lion controls recommends the following upgrades for the N-Tron 700 Series: MitigationUpgrade to firmware version 3.11.1 or greater MitigationConfigure or disable the SNMP communities MitigationDisable access to the web GUI MitigationThe upgrade procedure document can be viewed here.. MitigationThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here Red Lion Controls 700 Series: <=Bootloader_2.0.6.1 Product Status: known_affected Remediations Vendor fixRed Lion controls recommends the following upgrades for the N-Tron 700 Series: MitigationUpgrade to firmware version 3.11.1 or greater MitigationConfigure or disable the SNMP communities MitigationDisable access to the web GUI MitigationThe upgrade procedure document can be viewed here.. MitigationThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here Additional Metrics Relevant CWE: CWE-522 Insufficiently Protected Credentials CVSS Version Base Score Base Severity Vector String 3.1 8.1 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N View CVE Details CVE-2026-28745 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. Read More 6 Affected Products Red Lion Controls 700 Series: <=Firmware_3.11.0 Product Status: known_affected Remediations Vendor fixRed Lion controls recommends the following upgrades for the N-Tron 700 Series: MitigationUpgrade to firmware version 3.11.1 or greater MitigationConfigure or disable the SNMP communities MitigationDisable access to the web GUI MitigationThe upgrade procedure document can be viewed here.. MitigationThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here Red Lion Controls 700 Series: <=Bootloader_2.0.6.1 Product Status: known_affected Remediations Vendor fixRed Lion controls recommends the following upgrades for the N-Tron 700 Series: MitigationUpgrade to firmware version 3.11.1 or greater MitigationConfigure or disable the SNMP communities MitigationDisable access to the web GUI MitigationThe upgrade procedure document can be viewed here.. MitigationThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here Red Lion Controls 700 Series: <=Firmware_3.11.0 Product Status: known_affected Remediations Vendor fixRed Lion controls recommends the following upgrades for the N-Tron 700 Series: MitigationUpgrade to firmware version 3.11.1 or greater MitigationConfigure or disable the SNMP communities MitigationDisable access to the web GUI MitigationThe upgrade procedure document can be viewed here.. MitigationThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here Red Lion Controls 700 Series: <=Bootloader_2.0.6.1 Product Status: known_affected Remediations Vendor fixRed Lion controls recommends the following upgrades for the N-Tron 700 Series: MitigationUpgrade to firmware version 3.11.1 or greater MitigationConfigure or disable the SNMP communities MitigationDisable access to the web GUI MitigationThe upgrade procedure document can be viewed here.. MitigationThe advisory issued by HMS Networks regarding these vulnerabilities can be viewed here Red Lion Controls 700 Series: <=Firmware_3.11.0 Product Status: known_affected Remed
Indicators of Compromise
- cve — CVE-2026-32645
- cve — CVE-2026-39460
- cve — CVE-2026-28745
- cve — CVE-2026-33367
- cve — CVE-2026-29797
- cve — CVE-2026-39453
- cve — CVE-2026-33272