Is CVE-2026-1633 in the CISA KEV catalog?

No. CVE-2026-1633 is not currently on the CISA Known Exploited Vulnerabilities list.

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

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

What is the EPSS score for CVE-2026-1633?

CVE-2026-1633 has an EPSS score of 0.55% (42th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-1633

CRITICAL

10.0

CVSS v3

NVD

Description

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.

CWE-306

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.55%probability of exploitation in 30 days

42ndpercentile

Moderate risk: more likely to be exploited than 42% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-04.