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

CVE-2018-8855 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Smartserver 1 Firmware CVE-2018-8855

CRITICAL

Cleartext Transmission of Sensitive Information (CWE-319)

2018-07-24 ics-cert@hq.dhs.gov

Information Disclosure Smartserver 1 Firmware Smartserver 2 Firmware I Lon 100 Firmware I Lon 600 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jul 24, 2018 - 17:29 cve.org

CRITICAL 9.8

DescriptionCVE.org

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.

AnalysisAI

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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-319. 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. Affected products include: Echelon Smartserver 1 Firmware, Echelon Smartserver 2 Firmware, Echelon I.Lon 100 Firmware, Echelon I.Lon 600 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.