CVE-2026-1633 PUBLISHED

Synectix LAN 232 TRIO Missing Authentication for Critical Function

Assigner: icscert
Reserved: 29.01.2026 Published: 03.02.2026 Updated: 03.02.2026

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.

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 10

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

CVSS 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
CVSS Score: 10

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	Synectix
Product	LAN 232 TRIO
Versions	Default: unaffected Version All versions is affected

Workarounds

The affected products should be considered end-of-life, as Synectix is no longer in business and therefore firmware fixes, mitigations and updates will be unavailable.

CVE-2026-1633 PUBLISHED

Synectix LAN 232 TRIO Missing Authentication for Critical Function

Metrics

Product Status

Workarounds

Credits

References

Problem Types