Vulnerability · Published Oct 9, 2026 · Assigned by icscert
CVE-2026-39453Red Lion Controls N-Tron 700 Series Reachable Assertion
High 8.3
In plain English
A high-severity security flaw in 700 Series from Red Lion Controls. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.3%top 78.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Lion Controls | 700 Series | 0 – before Firmware Versions 3.11.00 – before Bootloader Versions 2.0.6.1 |
Weakness: CWE-617 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H