{"schemaVersion":3,"id":"CVE-2018-4839","aliases":[],"status":"published","duplicateOf":null,"title":null,"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), Other SIPROTEC 4 relays (All versions), Other SIPROTEC Compact relays (All versions), SIPROTEC 4 7SD80 (All versions < V4.70), SIPROTEC 4 7SJ61 (All versions < V4.96), SIPROTEC 4 7SJ62 (All versions < V4.96), SIPROTEC 4 7SJ64 (All versions < V4.96), SIPROTEC 4 7SJ66 (All versions < V4.30), SIPROTEC Compact 7SJ80 (All versions < V4.77), SIPROTEC Compact 7SK80 (All versions < V4.77). An attacker with local access to the engineering system or in a privileged network position and able to obtain certain network traffic could possibly reconstruct access authorization passwords.","dates":{"published":"2018-03-08T17:00:00.000Z","modified":"2024-08-05T05:18:26.659Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.3,"severity":"medium","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":5.3,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":3.5,"severity":"low","vector":"AV:N/AC:M/Au:S/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00576,"percentile":0.464,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00576},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00646,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00576,"percentile":0.464}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00646,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00576,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00576,"percentile":0.464}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-326","name":"Inadequate Encryption Strength","description":"The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/326.html"}],"affected":[{"vendor":"siemens","product":"digsi_4","name":"digsi 4","label":"digsi_4","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions < V4.92","noFixRecorded":false,"fixedIn":null},{"text":"< 4.92","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V4.92 | < 4.92","eol":null,"hubHref":"/vendor/siemens/digsi_4"},{"vendor":"siemens","product":"en100_ethernet_module_dnp3_firmware","name":"en100 ethernet module dnp3 firmware","label":"en100_ethernet_module_dnp3_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/siemens/en100_ethernet_module_dnp3"},{"vendor":"siemens","product":"en100 ethernet module dnp3 variant","name":"EN100 Ethernet module DNP3 variant","label":"en100 ethernet module dnp3 variant","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions < V1.05.00","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V1.05.00","eol":null,"hubHref":"/vendor/siemens/en100_ethernet_module_dnp3_variant"},{"vendor":"siemens","product":"en100_ethernet_module_iec_104_firmware","name":"en100 ethernet module iec 104 firmware","label":"en100_ethernet_module_iec_104_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/siemens/en100_ethernet_module_iec_104"},{"vendor":"siemens","product":"en100 ethernet module iec 104 variant","name":"EN100 Ethernet module IEC 104 variant","label":"en100 ethernet module iec 104 variant","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":"/vendor/siemens/en100_ethernet_module_iec_104_variant"},{"vendor":"siemens","product":"en100_ethernet_module_iec_61850_firmware","name":"en100 ethernet module iec 61850 firmware","label":"en100_ethernet_module_iec_61850_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< 4.30","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.30","eol":null,"hubHref":"/vendor/siemens/en100_ethernet_module_iec_61850"},{"vendor":"siemens","product":"en100 ethernet module iec 61850 variant","name":"EN100 Ethernet module IEC 61850 variant","label":"en100 ethernet module iec 61850 variant","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions < V4.30","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V4.30","eol":null,"hubHref":"/vendor/siemens/en100_ethernet_module_iec_61850_variant"},{"vendor":"siemens","product":"en100_ethernet_module_modbus_tcp_firmware","name":"en100 ethernet module modbus tcp firmware","label":"en100_ethernet_module_modbus_tcp_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/siemens/en100_ethernet_module_modbus_tcp"},{"vendor":"siemens","product":"en100 ethernet module modbus tcp variant","name":"EN100 Ethernet module Modbus TCP variant","label":"en100 ethernet module modbus tcp variant","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":"/vendor/siemens/en100_ethernet_module_modbus_tcp_variant"},{"vendor":"siemens","product":"en100_ethernet_module_profinet_io_firmware","name":"en100 ethernet module profinet io firmware","label":"en100_ethernet_module_profinet_io_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/siemens/en100_ethernet_module_profinet_io"},{"vendor":"siemens","product":"en100 ethernet module profinet io variant","name":"EN100 Ethernet module PROFINET IO variant","label":"en100 ethernet module profinet io variant","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":"/vendor/siemens/en100_ethernet_module_profinet_io_variant"},{"vendor":"siemens","product":"other siprotec 4 relays","name":"Other SIPROTEC 4 relays","label":"other siprotec 4 relays","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":"/vendor/siemens/other_siprotec_4_relays"},{"vendor":"siemens","product":"other siprotec compact relays","name":"Other SIPROTEC Compact relays","label":"other siprotec compact relays","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":"/vendor/siemens/other_siprotec_compact_relays"},{"vendor":"siemens","product":"siprotec 4 7sd80","name":"SIPROTEC 4 7SD80","label":"siprotec 4 7sd80","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions < V4.70","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V4.70","eol":null,"hubHref":"/vendor/siemens/siprotec_4_7sd80"},{"vendor":"siemens","product":"siprotec 4 7sj61","name":"SIPROTEC 4 7SJ61","label":"siprotec 4 7sj61","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions < V4.96","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V4.96","eol":null,"hubHref":"/vendor/siemens/siprotec_4_7sj61"},{"vendor":"siemens","product":"siprotec 4 7sj62","name":"SIPROTEC 4 7SJ62","label":"siprotec 4 7sj62","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions < V4.96","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V4.96","eol":null,"hubHref":"/vendor/siemens/siprotec_4_7sj62"},{"vendor":"siemens","product":"siprotec 4 7sj64","name":"SIPROTEC 4 7SJ64","label":"siprotec 4 7sj64","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"All versions < V4.96","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V4.96","eol":null,"hubHref":"/vendor/siemens/siprotec_4_7sj64"},{"vendor":"siemens","product":"siprotec_4_7sj66_firmware","name":"siprotec 4 7sj66 firmware","label":"siprotec_4_7sj66_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"All versions < V4.30","noFixRecorded":false,"fixedIn":null},{"text":"< 4.30","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V4.30 | < 4.30","eol":null,"hubHref":"/vendor/siemens/siprotec_4_7sj66"},{"vendor":"siemens","product":"siprotec_compact_7sj80_firmware","name":"siprotec compact 7sj80 firmware","label":"siprotec_compact_7sj80_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"All versions < V4.77","noFixRecorded":false,"fixedIn":null},{"text":"< 4.77","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V4.77 | < 4.77","eol":null,"hubHref":"/vendor/siemens/siprotec_compact_7sj80"},{"vendor":"siemens","product":"siprotec_compact_7sk80_firmware","name":"siprotec compact 7sk80 firmware","label":"siprotec_compact_7sk80_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"All versions < V4.77","noFixRecorded":false,"fixedIn":null},{"text":"< 4.77","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions < V4.77 | < 4.77","eol":null,"hubHref":"/vendor/siemens/siprotec_compact_7sk80"}],"affectedCount":20,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-203306.pdf","label":"cert-portal.siemens.com/productcert/pdf/ssa-203306.pdf","hostname":"cert-portal.siemens.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-067-01","label":"ics-cert.us-cert.gov/advisories/ICSA-18-067-01","hostname":"ics-cert.us-cert.gov","tags":["Third Party Advisory","US Government Resource"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-03-08T17:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T05:18:26.659Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":21,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T01:18:33.820Z","stale":false,"partial":false}}