CVE-2026-33367 Red Lion Controls N-Tron 700 Series Missing Authentication for Critical Function
Attackers can perform administrative actions like modifying settings or upgrading firmware via SNMP without authentication on Red Lion Controls N-Tron 700 Series devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-33367?
CVE-2026-33367 is a critical missing authorization vulnerability in Red Lion Controls 700 Series, published on 9 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-306
Which versions are affected by CVE-2026-33367?
How do I fix CVE-2026-33367?
No fix has been published for CVE-2026-33367 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-33367 being exploited?
There is no known exploitation of CVE-2026-33367 in the wild and no public exploit code.
Sources
Also known as GHSA-66jm-5jv9-hhhv.