{"schemaVersion":3,"id":"CVE-2019-5171","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"An exploitable command injection vulnerability exists in the iocheckd service ‘I/O-Check’ function of the WAGO PFC 200 Firmware version 03.02.02(14). An attacker can send specially crafted packet at 0x1ea48 to the extracted hostname value from the xml file that is used as an argument to /etc/config-tools/config_interfaces interface=X1 state=enabled ip-address=<contents of ip node> using sprintf().","dates":{"published":"2020-03-11T23:17:48.000Z","modified":"2024-08-04T19:47:56.680Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.2,"severity":"high","vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01389,"percentile":0.71908,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.01389},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01389,"percentile":0.71908}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01389,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01389,"percentile":0.71908}]},"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":[{"id":"REF_485E8396EC1BE043","name":"Exploit Reference (talosintelligence.com)","source":"reference","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","description":"The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.","type":"weakness","status":"Stable","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/78.html"}],"affected":[{"vendor":"wago","product":"pfc200_firmware","name":"pfc200 firmware","label":"pfc200_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"03.02.02\\(14\\)","noFixRecorded":false,"fixedIn":null}],"versionsText":"03.02.02\\(14\\)","eol":null,"hubHref":"/vendor/wago/pfc200"},{"vendor":"wago","product":"wago pfc200","name":"WAGO PFC200","label":"wago pfc200","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"Firmware version 03.02.02(14)","noFixRecorded":false,"fixedIn":null}],"versionsText":"Firmware version 03.02.02(14)","eol":null,"hubHref":"/vendor/wago/wago_pfc200"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962","label":"talosintelligence.com/vulnerability_reports/TALOS-2019-0962","hostname":"talosintelligence.com","tags":["X Refsource MISC","Exploit","Technical Description","Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-03-11T23:17:48.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T19:47:56.680Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":41,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T06:30:47.431Z","stale":false,"partial":false}}