CVE-2026-1633

CRITICALNVD 10.010.0—

10.0

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 v3: 10.0
EG Score: 10.0(medium)
EPSS: 26.1%
KEV: Not listed

Published

February 4, 2026

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated May 14, 2026

Patch available. Sources: cisa.

cisa Patch Available

Synectix LAN 232 TRIO | CISA

https://www.cisa.gov/news-events/ics-advisories/icsa-26-034-04

generic

CSAF/csaf_files/OT/white/2026/icsa-26-034-04.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-034-04.json

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-306Missing Authentication for Critical Function

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
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Frequently asked(5)

What is CVE-2026-1633?

CVE-2026-1633 is a critical vulnerability published on February 4, 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.

When was CVE-2026-1633 disclosed?

CVE-2026-1633 was first published in the National Vulnerability Database on February 4, 2026, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-1633 actively exploited?

CVE-2026-1633 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-1633?

CVE-2026-1633 has a CVSS v3 base score of 10.0 (NVD).

How do I remediate CVE-2026-1633?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1633, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-1633

📅 Published

🔄 Last Modified

📋 Advisory Details (2)