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IoT CVE-2026-1633

CRITICAL
Missing Authentication for Critical Function (CWE-306)
2026-02-04 ics-cert@hq.dhs.gov
Authentication Bypass IoT
10.0
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Feb 04, 2026 - 00:16 nvd
CRITICAL 10.0

DescriptionNVD

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.

AnalysisAI

Synectix LAN 232 TRIO serial-to-ethernet adapter exposes its web management interface without authentication (CVSS 10.0), enabling unauthenticated control of serial devices.

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RemediationAI

Within 24 hours: Identify all Synectix LAN 232 TRIO devices in your network and isolate them to restricted management VLANs with access controls. Within 7 days: Implement network segmentation, restrict web management interface access via firewall rules to authorized administrators only, and disable remote management if not operationally required. …

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CVE-2026-1633 vulnerability details – vuln.today
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