The Synectix LAN 232 TRIO 3-Port serial to ethernet adapter exposes its web management interface without requiring authentication, allowing unauthenticated users to modify critical device settings or factory reset the device.
https://www.cisa.gov/news-events/ics-advisories/icsa-26-034-04
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-034-04.json
Published: 2026-02-04
Updated: 2026-02-04
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 10
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Severity: Critical
Base Score: 10
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Severity: Critical
EPSS: 0.00054