{"id":"CVE-2022-27491","aliases":["EUVD-2022-31992","GHSA-x3p7-q669-8j5v"],"status":"published","title":"A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine...","description":"A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 through 6.121, 5.001 through 5.258 and before 4.086 allows a remote and unauthenticated attacker to trigger the sending of \"blocked page\" HTML data to an arbitrary victim via crafted TCP requests, potentially flooding the victim.","severity":{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:F/RL:U/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01483,"percentile":0.74153,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2022-09-06T15:10:10Z","modified":"2026-06-17T04:37:06Z","products":[{"vendor":"fortinet","product":"fortinet fortios"},{"vendor":"fortinet","product":"fortios"}],"references":[{"url":"https://fortiguard.com/psirt/FG-IR-22-073","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-27491"},{"url":"https://github.com/advisories/GHSA-x3p7-q669-8j5v"}],"sources":{"cve":[{"id":"CVE-2022-27491","description":"A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 through 6.121, 5.001 through 5.258 and before 4.086 allows a remote and unauthenticated attacker to trigger the sending of \"blocked page\" HTML data to an arbitrary victim via crafted TCP requests, potentially flooding the victim.","status":"published","published":"2022-09-06T15:10:10Z","modified":"2024-10-22T20:54:44.887Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:F/RL:U/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:34:34.250357Z"}],"euvd":[{"id":"EUVD-2022-31992","description":"A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 through 6.121, 5.001 through 5.258 and before 4.086 allows a remote and unauthenticated attacker to trigger the sending of \"blocked page\" HTML data to an arbitrary victim via crafted TCP requests, potentially flooding the victim.","status":"published","published":"2022-09-06T15:10:10Z","modified":"2024-10-22T20:54:44Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:F/RL:U/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:05:21.823373Z"}],"ghsa":[{"id":"GHSA-x3p7-q669-8j5v","title":"A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine...","description":"A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 through 6.121, 5.001 through 5.258 and before 4.086 allows a remote and unauthenticated attacker to trigger the sending of \"blocked page\" HTML data to an arbitrary victim via crafted TCP requests, potentially flooding the victim.","status":"published","published":"2022-09-07T00:01:53Z","modified":"2023-01-30T05:06:21Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T14:47:28.633261Z"}],"nvd":[{"id":"CVE-2022-27491","description":"A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 through 6.121, 5.001 through 5.258 and before 4.086 allows a remote and unauthenticated attacker to trigger the sending of \"blocked page\" HTML data to an arbitrary victim via crafted TCP requests, potentially flooding the victim.","status":"published","published":"2022-09-06T18:15:12.693Z","modified":"2026-06-17T04:37:06.983Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:07:26.802986Z"}]}}