{"id":"CVE-2018-4840","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-4840","generatedAt":"2026-10-29T00:34:15.292Z","title":"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),…","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.","published":"2018-03-08T17:29:00.000Z","lastModified":"2026-06-17T01:59:09.000Z","status":"Modified","sourceIdentifier":"productcert@siemens.com","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},"cwe":["CWE-306"],"affected":["siemens/siprotec compact 7sj80 firmware","siemens/siprotec compact 7sk80 firmware","siemens/siprotec 4 7sj66 firmware","siemens/digsi 4","siemens/en100 ethernet module iec 104 firmware","siemens/en100 ethernet module dnp3 firmware","siemens/en100 ethernet module modbus tcp firmware","siemens/en100 ethernet module profinet io firmware","siemens/en100 ethernet module iec 61850 firmware"],"epss":{"score":0.01777,"percentile":0.78106,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-203306.pdf","tags":["Patch","Vendor Advisory"],"source":"productcert@siemens.com"},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-067-01","tags":["Third Party Advisory","US Government Resource"],"source":"nvd@nist.gov"},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-203306.pdf","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-4840","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}