CVE-2026-39453: Red Lion Controls 700 Series

High severity, CVSS 8.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Navigating to a certain URL on the switch’s web server causes the switch to reboot. This can be automated using a tool like curl to create DoS conditions where the switch constantly reboots.

Affected products

• Red Lion Controls 700 Series

Published 2026-10-09. Last modified 2026-10-09.