A vulnerability has been identified in DIGSI 4 (All versions < V4.92), EN100 Ethernet module DNP3 variant (All versions < V1.05.00), EN100…

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.

Scores

EPSS (exploitation in 30 days)

1.8% · top 22% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• CWE-306: Missing Authentication for Critical Function (opens in a new tab)All about CWE-306 and its CVEs

Affected products

• Siemens · DIGSI 4

  • affected All versions < V4.92

• Siemens · EN100 Ethernet module DNP3 variant

  • affected All versions < V1.05.00

• Siemens · EN100 Ethernet module IEC 104 variant

  • affected All versions

• Siemens · EN100 Ethernet module IEC 61850 variant

  • affected All versions < V4.30

• Siemens · EN100 Ethernet module Modbus TCP variant

  • affected All versions

• Siemens · EN100 Ethernet module PROFINET IO variant

  • affected All versions

References (1)

• https://cert-portal.siemens.com/productcert/pdf/ssa-203306.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2018-4840](https://trackcve.app/badge/CVE-2018-4840.svg)](https://trackcve.app/cve/CVE-2018-4840)

Record last updated 5 Aug 2024, 05:18 UTC.