{"id":"CVE-2021-41027","aliases":["EUVD-2021-28180","GHSA-jgm2-2f8q-fj63"],"status":"published","title":"A stack-based buffer overflow in Fortinet FortiWeb version 6.4.1 and 6.4.0, allows an...","description":"A stack-based buffer overflow in Fortinet FortiWeb version 6.4.1 and 6.4.0, allows an authenticated attacker to execute unauthorized code or commands via crafted certificates loaded into the device.","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00163,"percentile":0.05532,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-12-08T12:55:42Z","modified":"2026-06-17T04:07:46Z","products":[{"vendor":"fortinet","product":"fortinet fortiweb"},{"vendor":"fortinet","product":"fortiweb"}],"references":[{"url":"https://fortiguard.com/advisory/FG-IR-21-134","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41027"},{"url":"https://github.com/advisories/GHSA-jgm2-2f8q-fj63"}],"sources":{"cve":[{"id":"CVE-2021-41027","description":"A stack-based buffer overflow in Fortinet FortiWeb version 6.4.1 and 6.4.0, allows an authenticated attacker to execute unauthorized code or commands via crafted certificates loaded into the device.","status":"published","published":"2021-12-08T12:55:42Z","modified":"2024-10-25T13:40:17.517Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:32:59.105382Z"}],"euvd":[{"id":"EUVD-2021-28180","description":"A stack-based buffer overflow in Fortinet FortiWeb version 6.4.1 and 6.4.0, allows an authenticated attacker to execute unauthorized code or commands via crafted certificates loaded into the device.","status":"published","published":"2021-12-08T12:55:42Z","modified":"2024-10-25T13:40:17Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C","level":"high"}],"updated_at":"2026-11-03T00:05:19.027476Z"}],"ghsa":[{"id":"GHSA-jgm2-2f8q-fj63","title":"A stack-based buffer overflow in Fortinet FortiWeb version 6.4.1 and 6.4.0, allows an...","description":"A stack-based buffer overflow in Fortinet FortiWeb version 6.4.1 and 6.4.0, allows an authenticated attacker to execute unauthorized code or commands via crafted certificates loaded into the device.","status":"published","published":"2021-12-09T00:01:00Z","modified":"2023-02-01T05:06:59Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:50:27.414775Z"}],"nvd":[{"id":"CVE-2021-41027","description":"A stack-based buffer overflow in Fortinet FortiWeb version 6.4.1 and 6.4.0, allows an authenticated attacker to execute unauthorized code or commands via crafted certificates loaded into the device.","status":"published","published":"2021-12-08T13:15:08.013Z","modified":"2026-06-17T04:07:46.187Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:01.811115Z"}]}}