{"id":"CVE-2024-55591","aliases":["EUVD-2024-52819","GHSA-v4mr-pqhx-vpm2"],"status":"published","title":"An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting...","description":"An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.","severity":{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.9435,"percentile":0.99852,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-288"],"published":"2025-01-14T14:08:34Z","modified":"2026-08-05T05:16:42Z","kev":{"date_added":"2025-01-14","due_date":"2025-01-21","required_action":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2025-01-14"},{"source":"kev","since":"2025-01-14"}],"exploits":[{"source":"pocgithub","id":"watchtowrlabs/fortios-auth-bypass-check-CVE-2024-55591","title":"watchtowrlabs/fortios-auth-bypass-check-CVE-2024-55591","date":"2025-01-16","url":"https://github.com/watchtowrlabs/fortios-auth-bypass-check-CVE-2024-55591"},{"source":"pocgithub","id":"sysirq/fortios-auth-bypass-poc-CVE-2024-55591","title":"sysirq/fortios-auth-bypass-poc-CVE-2024-55591","date":"2025-01-21","url":"https://github.com/sysirq/fortios-auth-bypass-poc-CVE-2024-55591"},{"source":"pocgithub","id":"sysirq/fortios-auth-bypass-exploit-CVE-2024-55591","title":"sysirq/fortios-auth-bypass-exploit-CVE-2024-55591","date":"2025-01-22","url":"https://github.com/sysirq/fortios-auth-bypass-exploit-CVE-2024-55591"},{"source":"pocgithub","id":"virus-or-not/CVE-2024-55591","title":"virus-or-not/CVE-2024-55591","date":"2025-01-24","url":"https://github.com/virus-or-not/CVE-2024-55591"},{"source":"pocgithub","id":"watchtowrlabs/fortios-auth-bypass-poc-CVE-2024-55591","title":"watchtowrlabs/fortios-auth-bypass-poc-CVE-2024-55591","date":"2025-01-27","url":"https://github.com/watchtowrlabs/fortios-auth-bypass-poc-CVE-2024-55591"},{"source":"pocgithub","id":"exfil0/CVE-2024-55591-POC","title":"exfil0/CVE-2024-55591-POC","date":"2025-01-29","url":"https://github.com/exfil0/CVE-2024-55591-POC"},{"source":"pocgithub","id":"0x7556/CVE-2024-55591","title":"0x7556/CVE-2024-55591","date":"2025-02-09","url":"https://github.com/0x7556/CVE-2024-55591"},{"source":"pocgithub","id":"UMChacker/CVE-2024-55591-POC","title":"UMChacker/CVE-2024-55591-POC","date":"2025-05-26","url":"https://github.com/UMChacker/CVE-2024-55591-POC"},{"source":"pocgithub","id":"uLl0a/cve-2024-55591-poc","title":"uLl0a/cve-2024-55591-poc","date":"2026-09-01","url":"https://github.com/uLl0a/cve-2024-55591-poc"},{"source":"pocgithub","id":"gotr00t0day/CVE-2024-55591","title":"gotr00t0day/CVE-2024-55591","date":"2026-10-01","url":"https://github.com/gotr00t0day/CVE-2024-55591"},{"source":"nuclei","id":"CVE-2024-55591","title":"Fortinet - Authentication Bypass","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-55591.yaml"}],"products":[{"vendor":"fortinet","product":"fortios"},{"vendor":"fortinet","product":"fortios and fortiproxy"},{"vendor":"fortinet","product":"fortiproxy"}],"references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-24-535","tags":["Mitigation","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55591","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-55591"},{"url":"https://github.com/advisories/GHSA-v4mr-pqhx-vpm2"}],"sources":{"cve":[{"id":"CVE-2024-55591","description":"An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.","status":"published","published":"2025-01-14T14:08:34.207Z","modified":"2026-08-05T03:55:59.43Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T14:34:22.153872Z"}],"euvd":[{"id":"EUVD-2024-52819","description":"An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.","status":"published","published":"2025-01-14T14:08:34Z","modified":"2026-08-05T03:55:59Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C","level":"critical"}],"exploited_since":"2025-01-14","updated_at":"2026-11-02T18:02:22.516769Z"}],"ghsa":[{"id":"GHSA-v4mr-pqhx-vpm2","title":"An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting...","description":"An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.","status":"published","published":"2025-01-14T15:30:54Z","modified":"2025-10-22T00:34:16Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T15:04:09.266545Z"}],"kev":[{"id":"CVE-2024-55591","title":"Fortinet FortiOS and FortiProxy Authentication Bypass Vulnerability","description":"Fortinet FortiOS and FortiProxy contain an authentication bypass vulnerability that may allow an unauthenticated, remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.","cwes":["CWE-288"],"kev":{"date_added":"2025-01-14","due_date":"2025-01-21","required_action":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:16.234141Z"}],"nvd":[{"id":"CVE-2024-55591","description":"An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS version 7.0.0 through 7.0.16 and FortiProxy version 7.0.0 through 7.0.19 and 7.2.0 through 7.2.12 allows a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.","status":"published","published":"2025-01-14T14:15:34.45Z","modified":"2026-08-05T05:16:42.38Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T14:10:42.329342Z"}]}}