CVE Tools
Sign in

CVE-2018-4840

Published: Mar 8, 2018Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-306
7.5HIGH
NVD MITRE
EPSS Score
1.8%
Top 24.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-306

Affected Products

Siemens AG
commercial·DEaka siemens
siprotec compact 7sj80 firmware
ICS / OT / IoT
siprotec compact 7sk80 firmware
ICS / OT / IoT
siprotec 4 7sj66 firmware
ICS / OT / IoT
DIGSI 4
ICS / OT / IoT
en100 ethernet module iec 104 firmware
ICS / OT / IoT
en100 ethernet module dnp3 firmware
ICS / OT / IoT
en100 ethernet module modbus tcp firmware
ICS / OT / IoT
en100 ethernet module profinet io firmware
ICS / OT / IoT
and 15 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2018-4840?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/pdf/ssa-203306.pdf
cert-portal.siemens.com
https://ics-cert.us-cert.gov/advisories/ICSA-18-067-01
ics-cert.us-cert.gov
https://www.securitylab.ru/lab/PT-2018-03
securitylab.ru
and 19 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2018-4840 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows