Is CVE-2018-8855 actively exploited?

No active exploitation of CVE-2018-8855 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-8855 be exploited remotely?

Yes. CVE-2018-8855 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-8855?

CVE-2018-8855 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2018-8855

CRITICAL

CVE-2018-8855

CWE-319Published: July 24, 2018· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Echelon SmartServer 1 all versions, SmartServer 2 all versions prior to release 4.11.007, i.LON 100 all versions, and i.LON 600 all versions. The devices allow unencrypted Web connections by default, and devices can receive configuration and firmware updates by unsecure FTP.

NVD Source

Technical Analysis

CVE-2018-8855 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.