{"schema":"threatline.record/2","record":{"id":"CVE-2021-40870","aliases":[],"summary":"Aviatrix Controller Unrestricted Upload of File","details":"Unrestricted upload of a file with a dangerous type is possible, which allows an unauthenticated user to execute arbitrary code via directory traversal.","categories":["Unclassified"],"product":"Aviatrix Controller","vendor":"Aviatrix","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2021-40870","source_modified_at":"2025-10-21T23:25:33.924Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}],"defaultStatus":null}],"fixed_versions":[],"cvss":9.8,"severity":"Critical","kev":{"listed":true,"date_added":"2022-01-18","due_date":"2022-02-01","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.93019,"percentile":0.99835,"score_date":"2026-10-23"},"published_at":"2021-09-13T07:41:55.000Z","modified_at":"2025-10-21T23:25:33.924Z","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-2021-40870","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:25:33.924Z"},{"source":"Nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-40870.yaml","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":null},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2021-40870","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Nuclei","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40870","source":"CISA KEV"},{"source":"CVE List","url":"https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://wearetradecraft.com/advisories/tc-2021-0002/","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40870","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2025-02-04T19:36:42.719277Z"},"exploits":[{"source":"Nuclei","kind":"Scanner template","name":"Aviatrix Controller 6.x before 6.5-1804.1922 - Remote Command Execution","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-40870.yaml"}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2025-10-21T23:25:33.924Z","content_hash":"74e6d2a07e083ce1f0969d48c469538d4d36220c5bcf254c37570eb21c1a6971"}}