{"id":"CVE-2026-39453","title":"Navigating to a certain URL on the switch’s web server causes the switch to reboot","summary":"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.","severity":"high","cvss":8.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H","cwe":["CWE-617"],"published":"2026-10-09","updated":"2026-10-11","sourceUpdated":"2026-10-11T17:17:05.000","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-39453","references":[{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-281-01.json","label":"ics-cert@hq.dhs.gov"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-281-01","label":"ics-cert@hq.dhs.gov"},{"url":"https://www.hms-networks.com/","label":"ics-cert@hq.dhs.gov"},{"url":"https://www.hms-networks.com/cybersecurity","label":"ics-cert@hq.dhs.gov"}],"tags":["nvd","cve.org"],"epss":0.00289,"epssPercentile":0.21382,"ingestedAt":"2026-10-09T16:02:33.389Z","vendor":"Red Lion Controls","product":"700 Series","affected":["700_series < Firmware Versions 3.11.0","700_series < Bootloader Versions 2.0.6.1"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-11T16:49:22.992241Z"},"slug":"CVE-2026-39453","body":"## Overview\n\nNavigating 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":45.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}