{"schema":"threatline.record/2","record":{"id":"CVE-2023-27997","aliases":[],"summary":"Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability","details":"Fortinet FortiOS and FortiProxy SSL-VPN contain a heap-based buffer overflow vulnerability which can allow an unauthenticated, remote attacker to execute code or commands via specifically crafted requests.","categories":["Network & edge"],"product":"FortiOS and FortiProxy SSL-VPN","vendor":"Fortinet","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-27997","source_modified_at":"2026-07-31T03:55:27.798Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"FortiOS-6K7K","vendor":"Fortinet","versions":[{"version":"7.0.10","status":"affected"},{"version":"7.0.5","status":"affected"},{"version":"6.4.12","status":"affected"},{"version":"6.4.10","status":"affected"},{"version":"6.4.8","status":"affected"},{"version":"6.4.6","status":"affected"},{"version":"6.4.2","status":"affected"},{"versionType":"semver","version":"6.2.9","lessThanOrEqual":"6.2.13","status":"affected"},{"versionType":"semver","version":"6.2.6","lessThanOrEqual":"6.2.7","status":"affected"},{"version":"6.2.4","status":"affected"},{"versionType":"semver","version":"6.0.12","lessThanOrEqual":"6.0.16","status":"affected"},{"version":"6.0.10","status":"affected"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-27997","source_modified_at":"2026-07-31T03:55:27.798Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"FortiProxy","vendor":"Fortinet","versions":[{"versionType":"semver","version":"7.2.0","lessThanOrEqual":"7.2.3","status":"affected"},{"versionType":"semver","version":"7.0.0","lessThanOrEqual":"7.0.9","status":"affected"},{"versionType":"semver","version":"2.0.0","lessThanOrEqual":"2.0.12","status":"affected"},{"versionType":"semver","version":"1.2.0","lessThanOrEqual":"1.2.13","status":"affected"},{"versionType":"semver","version":"1.1.0","lessThanOrEqual":"1.1.6","status":"affected"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-27997","source_modified_at":"2026-07-31T03:55:27.798Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"FortiOS","vendor":"Fortinet","versions":[{"versionType":"semver","version":"7.2.0","lessThanOrEqual":"7.2.4","status":"affected"},{"versionType":"semver","version":"7.0.0","lessThanOrEqual":"7.0.11","status":"affected"},{"versionType":"semver","version":"6.4.0","lessThanOrEqual":"6.4.12","status":"affected"},{"versionType":"semver","version":"6.2.0","lessThanOrEqual":"6.2.13","status":"affected"},{"versionType":"semver","version":"6.0.0","lessThanOrEqual":"6.0.16","status":"affected"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.2,"severity":"Critical","kev":{"listed":true,"date_added":"2023-06-13","due_date":"2023-07-04","required_action":"Apply updates per vendor instructions.","ransomware_campaign_use":"Known"},"epss":{"probability":0.85689,"percentile":0.99728,"score_date":"2026-10-23"},"published_at":"2023-06-13T08:41:47.415Z","modified_at":"2026-07-31T03:55:27.798Z","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-2023-27997","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-07-31T03:55:27.798Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2023-27997","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"url":"https://www.fortiguard.com/psirt/FG-IR-23-097","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27997","source":"CISA KEV"},{"source":"CVE List","url":"https://fortiguard.com/psirt/FG-IR-23-097","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27997","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":"2023-06-12T00:00:00+00:00"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-07-31T03:55:27.798Z","content_hash":"cf570b88b61a81b71346973784c530233ba8990e68b1afb47a603df842afdd85"}}