CVE-2026-33272

MEDIUM 4.9

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

CVSS Score

4.9

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-288
Vendor	red lion controls
Product	700 series
Published	Oct 9, 2026

Stay Ahead of the Next One

Get instant alerts for red lion controls 700 series

Be the first to know when new medium vulnerabilities affecting red lion controls 700 series are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

None

Affected Versions

Red Lion Controls / 700 Series

0 < Firmware Versions 3.11.0 0 < Bootloader Versions 2.0.6.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

hms-networks.com: https://www.hms-networks.com/ hms-networks.com: https://www.hms-networks.com/cybersecurity cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-281-01 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-281-01.json

Credits

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