No exploitation reportedFix available

CVE-2018-8859

No exploitation reported by the sources we read.

Published2018-07-24
WeaknessCWE-287 · CWE-288

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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. An attacker can bypass the required authentication specified in the security configuration file by including extra characters in the directory name when specifying the directory to be accessed. This vulnerability does not affect the i.LON 600 product.

Timeline

dates in UTC

2018-07-2417:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-8859?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-8859?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Echelon i.lon 100 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Echelon i.lon 600 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Echelon smartserver 1 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-18-200-03 CISA4 known affected
Echelon SmartServer 1, SmartServer 2, SmartServer 3, i.LON 100, i.LON 600 (Update A)
SmartServer 1: all versions · i.LON 600: all versions · SmartServer 2: all versions prior to release 4.11.007 · +1 more

Full record on NVD

Fix

Vendor fix CISA ICSA-18-200-03 · 4 productsDisable unencrypted services and secure encrypted services for the SmartServer or i.LON 100.
Mitigation from the vendor CISA ICSA-18-200-03 · 4 productsFor CVE-2018-8859, Echelon recommends affected users install the i.LON 600 and any servers using the i.LON 600 behind a firewall or on a VLAN without other devices.
Mitigation from the vendor CISA ICSA-18-200-03 · 4 productsEchelon recommends that affected users install SmartServer 2 Service Pack 7 (Version 4.11.007), to mitigate CVE-2018-8859, CVE-2018-8851, and CVE-2018-8855
Mitigation from the vendor CISA ICSA-18-200-03 · 4 productsSmartServer 2 Service Pack 7 is install
Mitigation from the vendor CISA ICSA-18-200-03 · 4 productsAll SmartServer and i.LON 600 devices along with any servers using the SmartServer and i.Lon services should be installed behind a firewall or on a VLAN without other devices.
Mitigation from the vendor CISA ICSA-18-200-03 · 4 productsChange the username and password during the initial installation of the affected products.

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2026-06-02
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.82026-06-02
NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
CNAweakness (CWE)CWE-288read 2026-10-23
NVDweakness (CWE)CWE-287read 2026-10-23
FIRST EPSSEPSS score1.6 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2018-07-24
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-8859?

Is CVE-2018-8859 actively exploited?

Active exploitation of CVE-2018-8859 has not been confirmed. Its EPSS score was 1.6% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-8859?

CVE-2018-8859 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Hear about the next vulnerability in your software

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database