{"cve":{"cve_id":"CVE-2021-0276","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":0.02314,"epss_percentile":0.81179,"epss_as_of":"2026-06-23","description":"A stack-based Buffer Overflow vulnerability in Juniper Networks SBR Carrier with EAP (Extensible Authentication Protocol) authentication configured, allows an attacker sending specific packets causing the radius daemon to crash resulting with a Denial of Service (DoS) or leading to remote code execution (RCE). By continuously sending this specific packets, an attacker can repeatedly crash the radius daemon, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks SBR Carrier: 8.4.1 versions prior to 8.4.1R19; 8.5.0 versions prior to 8.5.0R10; 8.6.0 versions prior to 8.6.0R4.","published_at":"2021-07-15T20:00:45.706000Z","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":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-121"],"nvd_references":["https://kb.juniper.net/JSA11180"],"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":"2026-06-28T23:14:44.300571Z"},"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":null,"metrics":[]},"affected":[{"vendor_slug":"juniper-networks","vendor_name":"Juniper Networks","product_slug":"sbr-carrier","product_name":"SBR Carrier","version_start":"8.4.1","version_start_inclusive":true,"version_end":"8.4.1R19","version_end_inclusive":false,"cpe23_uri":"cve5:juniper-networks:sbr-carrier:8.4.1:8.4.1R19"},{"vendor_slug":"juniper-networks","vendor_name":"Juniper Networks","product_slug":"sbr-carrier","product_name":"SBR Carrier","version_start":"8.5.0","version_start_inclusive":true,"version_end":"8.5.0R10","version_end_inclusive":false,"cpe23_uri":"cve5:juniper-networks:sbr-carrier:8.5.0:8.5.0R10"},{"vendor_slug":"juniper-networks","vendor_name":"Juniper Networks","product_slug":"sbr-carrier","product_name":"SBR Carrier","version_start":"8.6.0","version_start_inclusive":true,"version_end":"8.6.0R4","version_end_inclusive":false,"cpe23_uri":"cve5:juniper-networks:sbr-carrier:8.6.0:8.6.0R4"}],"exploit_refs":[],"news":[],"references":[{"url":"https://kb.juniper.net/JSA11180","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2021-07-15T20:00:45.706000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:04:38.474392Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:04:38.474392Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:04:38.474392Z","label":"CVSS score revised","source":"cvelistv5"}]}