{"schema":"threatline.record/2","record":{"id":"CVE-2026-7473","aliases":[],"summary":"Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability","details":"Arista Extensible Operating System (EOS) contains an incomplete comparison with missing factors vulnerability when the switch incorrectly decapsulate and forwards other unexpected tunneled packet with a destination IP matching its configured decapsulation IP.","categories":["Unclassified"],"product":"Extensible Operating System","vendor":"Arista","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-7473","source_modified_at":"2026-10-07T18:27:31.678Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"EOS","vendor":"Arista Networks","versions":[{"status":"affected","version":"4.36.0","versionType":"custom"},{"status":"affected","version":"4.35.0","lessThanOrEqual":"4.35","versionType":"custom"},{"status":"affected","version":"4.34.0","lessThanOrEqual":"4.34","versionType":"custom"},{"status":"affected","version":"4.33.0","lessThanOrEqual":"4.33","versionType":"custom"},{"status":"affected","version":"4.32.0","lessThanOrEqual":"4.32","versionType":"custom"},{"status":"affected","version":"4.31.0","lessThanOrEqual":"4.31","versionType":"custom"},{"status":"affected","version":"*","lessThanOrEqual":"4.30","versionType":"custom"}],"defaultStatus":"affected"}],"fixed_versions":[],"cvss":5.8,"severity":"Medium","kev":{"listed":true,"date_added":"2026-06-09","due_date":"2026-06-23","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.00649,"percentile":0.50475,"score_date":"2026-10-23"},"published_at":"2026-06-05T16:22:47.989Z","modified_at":"2026-10-07T18:27:31.678Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-7473","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-07T18:27:31.678Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-7473","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.arista.com/en/support/advisories-notices/security-advisory/24005-security-advisory-0137","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7473","source":"CISA KEV"},{"source":"CVE List","url":"https://www.arista.com/en/support/advisories-notices/security-advisory/22872-security-advisory-0137","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-7473","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2026-06-10T03:57:42.438072Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-07T18:27:31.678Z","content_hash":"9c94dbedc90a318e1af4122eaa9986c81a584c5d9c9a057c09c8e4f9fb65d0a6"}}