{"cve":{"cve_id":"CVE-2025-8873","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":0.00386,"epss_percentile":0.30251,"epss_as_of":"2026-06-23","description":"On affected platforms running Arista EOS with IPsec configured, a specially crafted packet can cause the dataplane to stop processing all IPsec traffic. The control plane may detect this condition, and attempt to reset the IPsec processing pipeline. After reset traffic may not resume being processed. There is no impact to non-IPsec traffic or to IPsec traffic not originating or terminating on the system. This issue was reported by an Arista customer.","published_at":"2026-06-04T23:04:56.535000Z","last_modified_at":null,"cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":8.7,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","cvss_v4_severity":"HIGH","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-1286"],"nvd_references":["https://www.arista.com/en/support/advisories-notices/security-advisory/22869-security-advisory-0127"],"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":"2026-06-28T23:28:39.965280Z"},"effective_severity":"HIGH","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":"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":"N","value_label":"None"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"N","value_label":"None"},{"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":"arista-networks","vendor_name":"Arista Networks","product_slug":"eos","product_name":"EOS","version_start":"4.33.0M","version_start_inclusive":true,"version_end":"4.33.4M","version_end_inclusive":true,"cpe23_uri":"cve5:arista-networks:eos:4.33.0M:4.33.4M"},{"vendor_slug":"arista-networks","vendor_name":"Arista Networks","product_slug":"eos","product_name":"EOS","version_start":"4.32.0M","version_start_inclusive":true,"version_end":"4.32.6.1M","version_end_inclusive":true,"cpe23_uri":"cve5:arista-networks:eos:4.32.0M:4.32.6.1M"},{"vendor_slug":"arista-networks","vendor_name":"Arista Networks","product_slug":"eos","product_name":"EOS","version_start":"4.31.0M","version_start_inclusive":true,"version_end":"4.31.7.1M","version_end_inclusive":true,"cpe23_uri":"cve5:arista-networks:eos:4.31.0M:4.31.7.1M"},{"vendor_slug":"arista-networks","vendor_name":"Arista Networks","product_slug":"eos","product_name":"EOS","version_start":"4.30.0M","version_start_inclusive":true,"version_end":"4.30.10M","version_end_inclusive":true,"cpe23_uri":"cve5:arista-networks:eos:4.30.0M:4.30.10M"},{"vendor_slug":"arista-networks","vendor_name":"Arista Networks","product_slug":"eos","product_name":"EOS","version_start":"4.29.0M","version_start_inclusive":true,"version_end":"4.29.10.1M","version_end_inclusive":true,"cpe23_uri":"cve5:arista-networks:eos:4.29.0M:4.29.10.1M"}],"exploit_refs":[],"news":[],"references":[{"url":"https://www.arista.com/en/support/advisories-notices/security-advisory/22869-security-advisory-0127","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-06-04T23:04:56.535000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:50:03.810079Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:03.810079Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:03.810079Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:03.810079Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:03.810079Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:50:03.810079Z","label":"CVSS score revised","source":"cvelistv5"}]}