{"cve":{"cve_id":"CVE-2023-31274","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":0.00502,"epss_percentile":0.38941,"epss_as_of":"2026-06-23","description":"\nAVEVA PI Server versions 2023 and 2018 SP3 P05 and prior contain a vulnerability that could allow an unauthenticated user to cause the PI Message Subsystem of a PI Server to consume available memory resulting in throttled processing of new PI Data Archive events and a partial denial-of-service condition.\n\n\n\n\n","published_at":"2024-01-18T17:15:25.837000Z","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-772"],"nvd_references":["https://www.cisa.gov/news-events/ics-advisories/icsa-24-018-01"],"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":"2026-06-29T01:30:25.178791Z"},"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":"aveva","vendor_name":"AVEVA","product_slug":"pi-server","product_name":"PI Server","version_start":"2023","version_start_inclusive":true,"version_end":"2023","version_end_inclusive":true,"cpe23_uri":"cve5:aveva:pi-server:2023:2023"},{"vendor_slug":"aveva","vendor_name":"AVEVA","product_slug":"pi-server","product_name":"PI Server","version_start":"0","version_start_inclusive":true,"version_end":"2018 SP3 P05 ","version_end_inclusive":true,"cpe23_uri":"cve5:aveva:pi-server:0:2018 SP3 P05 "}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-24-018-01","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2024-01-18T17:15:25.837000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:28:10.983340Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:28:10.983340Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:28:10.983340Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T01:30:25.178791Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:30:25.178791Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:30:25.178791Z","label":"SSVC decision revised","source":"vulnrichment"}]}