{"cve":{"cve_id":"CVE-2019-13940","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.0166,"epss_percentile":0.73609,"epss_as_of":"2026-06-23","description":"A vulnerability has been identified in SIMATIC ET 200pro IM154-8 PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200pro IM154-8F PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200pro IM154-8FX PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200S IM151-8 PN/DP CPU (All versions < V3.X.17), SIMATIC ET 200S IM151-8F PN/DP CPU (All versions < V3.X.17), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.1), SIMATIC S7-300 CPU 314C-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 315-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 315F-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 315T-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317F-2 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317T-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 317TF-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 319-3 PN/DP (All versions < V3.X.17), SIMATIC S7-300 CPU 319F-3 PN/DP (All versions < V3.X.17), SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX 2010 (All versions), SIMATIC WinAC RTX F 2010 (All versions), SIPLUS ET 200S IM151-8 PN/DP CPU (All versions < V3.X.17), SIPLUS ET 200S IM151-8F PN/DP CPU (All versions < V3.X.17), SIPLUS S7-300 CPU 314C-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 315-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 315F-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 317-2 PN/DP (All versions < V3.X.17), SIPLUS S7-300 CPU 317F-2 PN/DP (All versions < V3.X.17). Affected devices contain a vulnerability that could cause a denial of service condition of the web server\r\nby sending specially crafted HTTP requests to ports 80/tcp and 443/tcp.\r\n\r\nBeyond the web service, no other functions or interfaces are affected by the denial of service condition.","published_at":"2020-02-11T15:36:10Z","last_modified_at":null,"cvss_v3_score":5.3,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-400"],"nvd_references":["https://cert-portal.siemens.com/productcert/pdf/ssa-431678.pdf"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:12:08.601974Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"L","value_label":"Low"},{"metric":"E","name":"E","value":"P","value_label":"Physical"},{"metric":"RL","name":"RL","value":"O","value_label":"O"},{"metric":"RC","name":"RC","value":"C","value_label":"Changed"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-et-200pro-im154-8f-pn-dp-cpu","product_name":"SIMATIC ET 200pro IM154-8F PN/DP CPU","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:simatic-et-200pro-im154-8f-pn-dp-cpu:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-et-200pro-im154-8fx-pn-dp-cpu","product_name":"SIMATIC ET 200pro IM154-8FX PN/DP CPU","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:simatic-et-200pro-im154-8fx-pn-dp-cpu:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-et-200pro-im154-8-pn-dp-cpu","product_name":"SIMATIC ET 200pro IM154-8 PN/DP CPU","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:simatic-et-200pro-im154-8-pn-dp-cpu:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-et-200s-im151-8f-pn-dp-cpu","product_name":"SIMATIC ET 200S IM151-8F PN/DP CPU","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:simatic-et-200s-im151-8f-pn-dp-cpu:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-et-200s-im151-8-pn-dp-cpu","product_name":"SIMATIC ET 200S IM151-8 PN/DP CPU","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:simatic-et-200s-im151-8-pn-dp-cpu:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-s7-1200-cpu-family-incl.-siplus-variants","product_name":"SIMATIC S7-1200 CPU family (incl. 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SIPLUS variants)","version_start":"All versions","version_start_inclusive":true,"version_end":"All versions","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:simatic-s7-400-pn-dp-v7-cpu-family-incl.-siplus-variants:All versions:All versions"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-winac-rtx-2010","product_name":"SIMATIC WinAC RTX 2010","version_start":"All versions","version_start_inclusive":true,"version_end":"All versions","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:simatic-winac-rtx-2010:All versions:All versions"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-winac-rtx-f-2010","product_name":"SIMATIC WinAC RTX F 2010","version_start":"All versions","version_start_inclusive":true,"version_end":"All versions","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:simatic-winac-rtx-f-2010:All versions:All versions"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"siplus-et-200s-im151-8f-pn-dp-cpu","product_name":"SIPLUS ET 200S IM151-8F PN/DP CPU","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:siplus-et-200s-im151-8f-pn-dp-cpu:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"siplus-et-200s-im151-8-pn-dp-cpu","product_name":"SIPLUS ET 200S IM151-8 PN/DP CPU","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:siplus-et-200s-im151-8-pn-dp-cpu:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"siplus-s7-300-cpu-314c-2-pn-dp","product_name":"SIPLUS S7-300 CPU 314C-2 PN/DP","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:siplus-s7-300-cpu-314c-2-pn-dp:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"siplus-s7-300-cpu-315-2-pn-dp","product_name":"SIPLUS S7-300 CPU 315-2 PN/DP","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:siplus-s7-300-cpu-315-2-pn-dp:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"siplus-s7-300-cpu-315f-2-pn-dp","product_name":"SIPLUS S7-300 CPU 315F-2 PN/DP","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:siplus-s7-300-cpu-315f-2-pn-dp:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"siplus-s7-300-cpu-317-2-pn-dp","product_name":"SIPLUS S7-300 CPU 317-2 PN/DP","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:siplus-s7-300-cpu-317-2-pn-dp:All versions < V3.X.17:All versions < V3.X.17"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"siplus-s7-300-cpu-317f-2-pn-dp","product_name":"SIPLUS S7-300 CPU 317F-2 PN/DP","version_start":"All versions < V3.X.17","version_start_inclusive":true,"version_end":"All versions < V3.X.17","version_end_inclusive":true,"cpe23_uri":"cve5:siemens:siplus-s7-300-cpu-317f-2-pn-dp:All versions < V3.X.17:All versions < V3.X.17"}],"exploit_refs":[],"news":[],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-431678.pdf","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2020-02-11T15:36:10Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T16:59:44.323137Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T16:59:44.323137Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T16:59:44.323137Z","label":"CVSS score revised","source":"cvelistv5"}]}