High 8.1Published Oct 9, 2026

CVE-2026-33367Red Lion Controls N-Tron 700 Series Missing Authentication for Critical Function

Updated under an hour ago (2026-10-19 08:40 UTC)

Does this affect you?

It affects Red Lion Controls 700 Series. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.29%, higher than 20% of scored CVEs.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Red Lion Controls 700 Series

Exploited in the last 30 days

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: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-306
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.29% (percentile 20)
Assigned by: icscert
NVD analysis: Awaiting Analysis
Record last updated: Oct 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Lion Controls 700 Series red_lion_controls:700_series (from the name)	before Firmware Versions 3.11.0; before Bootloader Versions 2.0.6.1; 3.11.1 not affected	CNA record

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.