Authentication Bypass Vulnerability in Synectix LAN 232 TRIO 3-Port Serial to Ethernet Adapter
CVE-2026-1633

10CRITICAL

Key Information:

Vendor

Synectix

Status
Lan 232 Trio
Vendor
CVE Published:
3 February 2026

What is CVE-2026-1633?

The Synectix LAN 232 TRIO 3-Port Serial to Ethernet Adapter presents a significant security risk by exposing its web management interface without any authentication requirements. This vulnerability allows unauthorized users to access and modify critical device configurations, including the potential for a factory reset, thereby jeopardizing the integrity and functionality of the device. Ensuring proper authentication mechanisms are implemented is crucial to safeguarding against this type of vulnerability.

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Affected Version(s)

LAN 232 TRIO All versions

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-0...
https://github.com/cisagov/CSAF/blob/develop/csaf_files/O...

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Souvik Kandar of MicroSec reported this vulnerability to CISA
JSON
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