{"id":"CVE-2026-126163","aliases":["EUVD-2026-123837","GHSA-rcpr-f85j-6pq7"],"status":"published","title":"A use of externally-controlled format string vulnerability in Fortinet FortiMail 8.0.0 through 8...","description":"A use of externally-controlled format string vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1 may allow a remote unauthenticated attacker to execute unauthorized code or commands via a specially crafted SMTP command.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00364,"percentile":0.30664,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-134"],"published":"2026-11-11T21:29:25.391Z","modified":"2026-11-12T00:32:56Z","products":[{"vendor":"fortinet","product":"fortimail"}],"references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-26-215"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126163"},{"url":"https://github.com/advisories/GHSA-rcpr-f85j-6pq7"}],"sources":{"cve":[{"id":"CVE-2026-126163","description":"A use of externally-controlled format string vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1 may allow a remote unauthenticated attacker to execute unauthorized code or commands via a specially crafted SMTP command.","status":"published","published":"2026-11-11T21:29:25.391Z","modified":"2026-11-11T21:29:25.391Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-134"],"updated_at":"2026-11-11T22:33:40.554088Z"}],"euvd":[{"id":"EUVD-2026-123837","description":"A use of externally-controlled format string vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1 may allow a remote unauthenticated attacker to execute unauthorized code or commands via a specially crafted SMTP command.","status":"published","published":"2026-11-12T00:32:56Z","modified":"2026-11-12T00:32:56Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-12T01:31:24.707094Z"}],"ghsa":[{"id":"GHSA-rcpr-f85j-6pq7","title":"A use of externally-controlled format string vulnerability in Fortinet FortiMail 8.0.0 through 8...","description":"A use of externally-controlled format string vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1 may allow a remote unauthenticated attacker to execute unauthorized code or commands via a specially crafted SMTP command.","status":"published","published":"2026-11-12T00:32:56Z","modified":"2026-11-12T00:32:56Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-134"],"updated_at":"2026-11-12T00:37:18.265111Z"}],"nvd":[{"id":"CVE-2026-126163","description":"A use of externally-controlled format string vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1 may allow a remote unauthenticated attacker to execute unauthorized code or commands via a specially crafted SMTP command.","status":"published","published":"2026-11-11T22:17:14.403Z","modified":"2026-11-12T19:14:29.34Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-134"],"updated_at":"2026-11-11T23:26:41.421267Z"}]}}