{"cve":{"cve_id":"CVE-2025-40771","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":0.00485,"epss_percentile":0.37959,"epss_as_of":"2026-06-23","description":"A vulnerability has been identified in SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) (All versions < V2.4.24), SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) (All versions < V2.4.24), SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0) (All versions < V2.4.24), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0) (All versions < V2.4.24). Affected devices do not properly authenticate configuration connections. This could allow an unauthenticated remote attacker to access the configuration data.","published_at":"2025-10-14T09:15:17.564000Z","last_modified_at":null,"cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":9.3,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","cvss_v4_severity":"CRITICAL","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-306"],"nvd_references":["https://cert-portal.siemens.com/productcert/html/ssa-486936.html"],"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":"2026-06-28T23:26:53.888276Z"},"effective_severity":"CRITICAL","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":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":"4.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"AT","name":"Attack Requirements","value":"N","value_label":"None"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"H","value_label":"High"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"N","value_label":"None"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"N","value_label":"None"},{"metric":"SA","name":"Availability (Subsequent System)","value":"N","value_label":"None"}]},"affected":[{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-cp-1542sp-1","product_name":"SIMATIC CP 1542SP-1","version_start":"0","version_start_inclusive":true,"version_end":"V2.4.24","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:simatic-cp-1542sp-1:0:V2.4.24"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-cp-1542sp-1-irc","product_name":"SIMATIC CP 1542SP-1 IRC","version_start":"0","version_start_inclusive":true,"version_end":"V2.4.24","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:simatic-cp-1542sp-1-irc:0:V2.4.24"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-cp-1543sp-1","product_name":"SIMATIC CP 1543SP-1","version_start":"0","version_start_inclusive":true,"version_end":"V2.4.24","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:simatic-cp-1543sp-1:0:V2.4.24"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"siplus-et-200sp-cp-1542sp-1-irc-tx-rail","product_name":"SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL","version_start":"0","version_start_inclusive":true,"version_end":"V2.4.24","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:siplus-et-200sp-cp-1542sp-1-irc-tx-rail:0:V2.4.24"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"siplus-et-200sp-cp-1543sp-1-isec","product_name":"SIPLUS ET 200SP CP 1543SP-1 ISEC","version_start":"0","version_start_inclusive":true,"version_end":"V2.4.24","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:siplus-et-200sp-cp-1543sp-1-isec:0:V2.4.24"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"siplus-et-200sp-cp-1543sp-1-isec-tx-rail","product_name":"SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL","version_start":"0","version_start_inclusive":true,"version_end":"V2.4.24","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:siplus-et-200sp-cp-1543sp-1-isec-tx-rail:0:V2.4.24"}],"exploit_refs":[],"news":[],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-486936.html","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2025-10-14T09:15:17.564000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:46:04.492182Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:46:04.492182Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:46:04.492182Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:46:04.492182Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:46:04.492182Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:46:04.492182Z","label":"CVSS score revised","source":"cvelistv5"}]}