{"schemaVersion":3,"id":"CVE-2018-4843","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability has been identified in  SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC CP 343-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 (All versions < V3.3), SIMATIC CP 443-1 Advanced (All versions < V3.3), SIMATIC ET 200pro IM154-8 PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200pro IM154-8F PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200pro IM154-8FX PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200S IM151-8 PN/DP CPU (All versions < V3.2.16), SIMATIC ET 200S IM151-8F PN/DP CPU (All versions < V3.2.16), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V1.7.0), SIMATIC S7-1500 Software Controller (All versions < V1.7.0), SIMATIC S7-300 CPU 314C-2 PN/DP (All versions < V3.3.16), SIMATIC S7-300 CPU 315-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 315F-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 315T-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317F-2 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317T-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 317TF-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 319-3 PN/DP (All versions < V3.2.16), SIMATIC S7-300 CPU 319F-3 PN/DP (All versions < V3.2.16), SIMATIC S7-400 CPU 412-2 PN V7 (All versions < V7.0.3), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.9), SIMATIC S7-400 PN/DP V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.7), SIMATIC S7-410 CPU family (incl. SIPLUS variants) (All versions < V8.1), SIMATIC WinAC RTX 2010 (All versions < V2010 SP3), SIMATIC WinAC RTX F 2010 (All versions < V2010 SP3), SINUMERIK 828D (All versions < V4.7 SP6 HF1), SIPLUS ET 200S IM151-8 PN/DP CPU (All versions < V3.2.16), SIPLUS ET 200S IM151-8F PN/DP CPU (All versions < V3.2.16), SIPLUS NET CP 443-1 (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (All versions < V3.3), SIPLUS S7-300 CPU 314C-2 PN/DP (All versions < V3.3.16), SIPLUS S7-300 CPU 315-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 315F-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 317-2 PN/DP (All versions < V3.2.16), SIPLUS S7-300 CPU 317F-2 PN/DP (All versions < V3.2.16), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), Softnet PROFINET IO for PC-based Windows systems (All versions). Responding to a PROFINET DCP request with a specially crafted PROFINET DCP packet could cause a denial of service condition of the requesting system.\n\nThe security vulnerability could be exploited by an attacker located on the same Ethernet segment (OSI Layer 2) as the targeted device. A manual restart is required to recover the system.","dates":{"published":"2018-03-20T14:00:00.000Z","modified":"2024-08-05T05:18:26.626Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.1,"severity":"medium","vector":"AV:A/AC:L/Au:N/C:N/I:N/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00543,"percentile":0.44505,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00543},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00543,"percentile":0.44505}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00543,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":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Input Validation","description":"The product receives input or data, but it does\n        not validate or incorrectly validates that the input has the\n        properties that are required to process the data safely and\n        correctly.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/20.html"}],"affected":[{"vendor":"siemens","product":"simatic_cp_343-1_firmware","name":"simatic cp 343-1 firmware","label":"simatic_cp_343-1_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/siemens/simatic_cp_343-1"},{"vendor":"siemens","product":"simatic cp 343-1 advanced (incl. siplus variants)","name":"SIMATIC CP 343-1 Advanced (incl. 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