{"cve":{"cve_id":"CVE-2024-21126","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":0.00493,"epss_percentile":0.38401,"epss_as_of":"2026-06-23","description":"Vulnerability in the Oracle Database Portable Clusterware component of Oracle Database Server.  Supported versions that are affected are 19.3-19.23 and  21.3-21.14. Easily exploitable vulnerability allows unauthenticated attacker with network access via DNS to compromise Oracle Database Portable Clusterware.  While the vulnerability is in Oracle Database Portable Clusterware, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Database Portable Clusterware. CVSS 3.1 Base Score 5.8 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L).","published_at":"2024-07-16T22:39:52.158000Z","last_modified_at":null,"cvss_v3_score":5.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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-400"],"nvd_references":["https://www.oracle.com/security-alerts/cpujul2024.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":"2026-06-29T01:52:13.459991Z"},"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":"C","value_label":"Changed"},{"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":"oracle-corporation","vendor_name":"Oracle Corporation","product_slug":"database-enterprise-edition","product_name":"Database - Enterprise Edition","version_start":"19.3","version_start_inclusive":true,"version_end":"19.23","version_end_inclusive":true,"cpe23_uri":"cve5:oracle-corporation:database-enterprise-edition:19.3:19.23"},{"vendor_slug":"oracle-corporation","vendor_name":"Oracle Corporation","product_slug":"database-enterprise-edition","product_name":"Database - Enterprise Edition","version_start":"21.3","version_start_inclusive":true,"version_end":"21.14","version_end_inclusive":true,"cpe23_uri":"cve5:oracle-corporation:database-enterprise-edition:21.3:21.14"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.oracle.com/security-alerts/cpujul2024.html","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2024-07-16T22:39:52.158000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:33:42.872393Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:33:42.872393Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:33:42.872393Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T01:52:13.459991Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:52:13.459991Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:52:13.459991Z","label":"SSVC decision revised","source":"vulnrichment"}]}