All vulnerabilities
CVE-2026-39453

Red Lion Controls N-Tron 700 Series Reachable Assertion

Red Lion Controls 700 Series
Open in ThreatlineRecord JSON
CVSS
8.3High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.29%Chance of exploitation activity in the next 30 days, higher than 20% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published9 Oct 2026Updated 11 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 3

  • 700 Seriesaffected: all versions before Firmware Versions 3.11.0CVE List
  • 700 Seriesaffected: all versions before Bootloader Versions 2.0.6.1CVE List
  • 700 Seriesunaffected: 3.11.1CVE List

References 4