{"schema":"threatline.record/2","record":{"id":"CVE-2018-13383","aliases":[],"summary":"Fortinet FortiOS and FortiProxy Out-of-bounds Write","details":"A heap buffer overflow in Fortinet FortiOS and FortiProxy may cause the SSL VPN web service termination for logged in users.","categories":["Network & edge"],"product":"FortiOS and FortiProxy","vendor":"Fortinet","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2018-13383","source_modified_at":"2025-10-21T23:45:36.261Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Fortinet FortiOS and FortiProxy","vendor":"Fortinet","versions":[{"status":"affected","version":"FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.10, 5.4.0 through 5.4.12, 5.2.14 and earlier, FortiProxy 2.0.0, 1.2.8 and earlier"}],"defaultStatus":null}],"fixed_versions":[],"cvss":4.3,"severity":"Medium","kev":{"listed":true,"date_added":"2022-01-10","due_date":"2022-07-10","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Known"},"epss":{"probability":0.33647,"percentile":0.98388,"score_date":"2026-10-23"},"published_at":"2019-05-29T17:20:03.000Z","modified_at":"2025-10-21T23:45:36.261Z","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-2018-13383","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:45:36.261Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2018-13383","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-13383","source":"CISA KEV"},{"source":"CVE List","url":"https://fortiguard.com/advisory/FG-IR-18-388","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://fortiguard.com/advisory/FG-IR-20-229","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-13383","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"partial","assessed_at":"2024-10-23T13:33:02.861324Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:45:36.261Z","content_hash":"efd3c94cd2ad484060d72ad372de6fef02675dfde07a3ca075257478669bd8b1"}}