CVE-2018-4838
A vulnerability has been identified in EN100 Ethernet module IEC 61850 variant (All versions < V4.30), EN100 Ethernet module DNP3 variant…
- Published
- Updated
- Reserved
- Assigned by
- siemens
Description
A vulnerability has been identified in EN100 Ethernet module IEC 61850 variant (All versions < V4.30), EN100 Ethernet module DNP3 variant (All versions < V1.04), EN100 Ethernet module PROFINET IO variant (All versions), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module IEC 104 variant (All versions < V1.22). The web interface (TCP/80) of affected devices allows an unauthenticated user to upgrade or downgrade the firmware of the device, including to older versions with known vulnerabilities.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 1.4% · top 27% 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
Affected products
Siemens AG · EN100 Ethernet module IEC 61850 variant
- affected All versions < V4.30
Siemens AG · EN100 Ethernet module DNP3 variant
- affected All versions < V1.04
Siemens AG · EN100 Ethernet module PROFINET IO variant
- affected All versions
Siemens AG · EN100 Ethernet module Modbus TCP variant
- affected All versions
Siemens AG · EN100 Ethernet module IEC 104 variant
- affected All versions < V1.22
References (2)
- https://cert-portal.siemens.com/productcert/pdf/ssa-845879.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
- 103379 (opens in a new tab)vdb-entryx_refsource_BIDx_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
[](https://trackcve.app/cve/CVE-2018-4838)Record last updated .