VULNERABILITY INTELLIGENCE

CVE-2018-4840

CVSS score7.5 HIGH

EPSS probability1.78%

CISA KEVNot currently listed

Published2018-03-08

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

A vulnerability has been identified in DIGSI 4 (All versions < V4.92), EN100 Ethernet module DNP3 variant (All versions < V1.05.00), EN100 Ethernet module IEC 104 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.30), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module PROFINET IO variant (All versions). The device engineering mechanism allows an unauthenticated remote user to upload a modified device configuration overwriting access authorization passwords.

Weakness classification

CWE-306: Missing Authentication for Critical Function

Primary references

productcert@siemens.com — Patch, Vendor Advisory
nvd@nist.gov — Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory