{"cve":{"cve_id":"CVE-2023-52891","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":0.00465,"epss_percentile":0.36719,"epss_as_of":"2026-06-23","description":"A vulnerability has been identified in SIMATIC Energy Manager Basic (All versions < V7.5), SIMATIC Energy Manager PRO (All versions < V7.5), SIMATIC IPC DiagBase (All versions), SIMATIC IPC DiagMonitor (All versions), SIMIT V10 (All versions), SIMIT V11 (All versions < V11.1). Unified Automation .NET based OPC UA Server SDK before 3.2.2 used in Siemens products are affected by a similar vulnerability as documented in CVE-2023-27321 for the OPC Foundation UA .NET Standard implementation. A successful attack may lead to high load situation and memory exhaustion, and may block the server.","published_at":"2024-07-09T12:04:42.619000Z","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","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":true,"ssvc_technical_impact":"partial","cwes":["CWE-1325"],"nvd_references":["https://cert-portal.siemens.com/productcert/html/ssa-088132.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":"2026-06-29T01:43:24.616711Z"},"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"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-energy-manager-basic","product_name":"SIMATIC Energy Manager Basic","version_start":"0","version_start_inclusive":true,"version_end":"V7.5","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:simatic-energy-manager-basic:0:V7.5"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-energy-manager-pro","product_name":"SIMATIC Energy Manager PRO","version_start":"0","version_start_inclusive":true,"version_end":"V7.5","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:simatic-energy-manager-pro:0:V7.5"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-ipc-diagbase","product_name":"SIMATIC IPC DiagBase","version_start":"0","version_start_inclusive":true,"version_end":"*","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:simatic-ipc-diagbase:0:*"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simatic-ipc-diagmonitor","product_name":"SIMATIC IPC DiagMonitor","version_start":"0","version_start_inclusive":true,"version_end":"*","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:simatic-ipc-diagmonitor:0:*"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simit-v10","product_name":"SIMIT V10","version_start":"0","version_start_inclusive":true,"version_end":"*","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:simit-v10:0:*"},{"vendor_slug":"siemens","vendor_name":"Siemens","product_slug":"simit-v11","product_name":"SIMIT V11","version_start":"0","version_start_inclusive":true,"version_end":"V11.1","version_end_inclusive":false,"cpe23_uri":"cve5:siemens:simit-v11:0:V11.1"}],"exploit_refs":[],"news":[],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-088132.html","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2024-07-09T12:04:42.619000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:31:15.848049Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:31:15.848049Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:31:15.848049Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T01:43:24.616711Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:43:24.616711Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:43:24.616711Z","label":"SSVC decision revised","source":"vulnrichment"}]}