{"schema":"threatline.record/2","record":{"id":"CVE-2026-24858","aliases":[],"summary":"Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability","details":"Fortinet FortiAnalyzer, FortiManager, FortiOS, and FortiProxy contain an authentication bypass using an alternate path or channel that could allow an attacker with a FortiCloud account and a registered device to log into other devices registered to other accounts, if FortiCloud SSO authentication is enabled on those devices.","categories":["Network & edge"],"product":"Multiple Products","vendor":"Fortinet","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-24858","source_modified_at":"2026-06-09T14:27:53.379Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"FortiWeb","vendor":"Fortinet","versions":[{"versionType":"semver","version":"8.0.0","lessThanOrEqual":"8.0.3","status":"affected"},{"versionType":"semver","version":"7.6.0","lessThanOrEqual":"7.6.6","status":"affected"},{"versionType":"semver","version":"7.4.0","lessThanOrEqual":"7.4.11","status":"affected"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-24858","source_modified_at":"2026-06-09T14:27:53.379Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"FortiNAC-F","vendor":"Fortinet","versions":[{"versionType":"semver","version":"7.6.3","lessThanOrEqual":"7.6.5","status":"affected"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-24858","source_modified_at":"2026-06-09T14:27:53.379Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"FortiOS","vendor":"Fortinet","versions":[{"versionType":"semver","version":"7.6.0","lessThanOrEqual":"7.6.5","status":"affected"},{"versionType":"semver","version":"7.4.0","lessThanOrEqual":"7.4.10","status":"affected"},{"versionType":"semver","version":"7.2.0","lessThanOrEqual":"7.2.12","status":"affected"},{"versionType":"semver","version":"7.0.0","lessThanOrEqual":"7.0.18","status":"affected"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-24858","source_modified_at":"2026-06-09T14:27:53.379Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"FortiAnalyzer","vendor":"Fortinet","versions":[{"versionType":"semver","version":"7.6.0","lessThanOrEqual":"7.6.5","status":"affected"},{"versionType":"semver","version":"7.4.0","lessThanOrEqual":"7.4.9","status":"affected"},{"versionType":"semver","version":"7.2.0","lessThanOrEqual":"7.2.11","status":"affected"},{"versionType":"semver","version":"7.0.0","lessThanOrEqual":"7.0.15","status":"affected"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-24858","source_modified_at":"2026-06-09T14:27:53.379Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"FortiProxy","vendor":"Fortinet","versions":[{"versionType":"semver","version":"7.6.0","lessThanOrEqual":"7.6.4","status":"affected"},{"versionType":"semver","version":"7.4.0","lessThanOrEqual":"7.4.12","status":"affected"},{"versionType":"semver","version":"7.2.0","lessThanOrEqual":"7.2.15","status":"affected"},{"versionType":"semver","version":"7.0.0","lessThanOrEqual":"7.0.22","status":"affected"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-24858","source_modified_at":"2026-06-09T14:27:53.379Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"FortiManager","vendor":"Fortinet","versions":[{"versionType":"semver","version":"7.6.0","lessThanOrEqual":"7.6.5","status":"affected"},{"versionType":"semver","version":"7.4.0","lessThanOrEqual":"7.4.9","status":"affected"},{"versionType":"semver","version":"7.2.0","lessThanOrEqual":"7.2.11","status":"affected"},{"versionType":"semver","version":"7.0.0","lessThanOrEqual":"7.0.15","status":"affected"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":9.4,"severity":"Critical","kev":{"listed":true,"date_added":"2026-01-27","due_date":"2026-01-30","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":0.85796,"percentile":0.99729,"score_date":"2026-10-23"},"published_at":"2026-01-27T19:18:23.591Z","modified_at":"2026-06-09T14:27:53.379Z","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-2026-24858","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-06-09T14:27:53.379Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-24858","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.fortinet.com/blog/psirt-blogs/analysis-of-sso-abuse-on-fortios","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24858","source":"CISA KEV"},{"source":"CVE List","url":"https://fortiguard.fortinet.com/psirt/FG-IR-26-060"},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-24858","tags":["government-resource"]},{"source":"CVE List","url":"https://cert-portal.siemens.com/productcert/html/ssa-975644.html"}],"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":"2026-01-28T04:55:41.959755Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-06-09T14:27:53.379Z","content_hash":"aafbcbf8e9bb3cb86f684b96073d9c79fb805e7437f9e6973d8662e68233e9ad"}}