CVE-2026-28745 PUBLISHED

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

Assigner: icscert
Reserved: 08.04.2026 Published: 09.10.2026 Updated: 09.10.2026

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 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 9.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Red Lion Controls
Product	700 Series
Versions	Default: unaffected affected from 0 to Firmware Versions 3.11.0 (excl.) affected from 0 to Bootloader Versions 2.0.6.1 (excl.) Version 3.11.1 is unaffected

Solutions

Red Lion controls recommends the following upgrades for the N-Tron 700 Series:

Upgrade to firmware version 3.11.1 or greater
Configure or disable the SNMP communities
Disable access to the web GUI

The upgrade procedure document can be viewed here https://www.hms-networks.com/ .

The advisory issued by HMS Networks regarding these vulnerabilities can be viewed here https://www.hms-networks.com/cybersecurity .

Credits

Gabrianna (Ria) Milloway of Idaho National Laboratory reported this vulnerability to CISA. finder

References

Problem Types

CWE-257 CWE