CVE-2018-8855

Name: CVE-2018-8855
Creator: NVD / NIST
Published: 2018-07-24T17:29:00.4+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.83%

Last modified Jun 17, 2026

CVE-2018-8855 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 0.83% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.83%

52.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Echelon	Smartserver 1 Firmware	All versions
Echelon	Smartserver 2 Firmware	< 4.11.007
Echelon	I.Lon 100 Firmware	All versions
Echelon	I.Lon 600 Firmware	All versions

References

https://ics-cert.us-cert.gov/advisories/ICSA-18-200-03Third Party Advisory, US Government Resource
https://ics-cert.us-cert.gov/advisories/ICSA-18-200-03Third Party Advisory, US Government Resource

Timeline

Published: Jul 24, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-8855?

How severe is CVE-2018-8855?

CVE-2018-8855 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.83% probability of exploitation in the next 30 days.

How do I fix CVE-2018-8855?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-8855?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST