{"id":"CVE-2025-53843","aliases":["EUVD-2025-198006","GHSA-69h7-jm2r-gmcg"],"status":"published","title":"A stack-based buffer overflow in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4...","description":"A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets","severity":{"version":"3.1","score":6.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00655,"percentile":0.51836,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2025-11-18T17:01:28Z","modified":"2026-10-18T20:10:00Z","products":[{"vendor":"fortinet","product":"fortios"},{"vendor":"siemens","product":"ruggedcom ape1808"}],"references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-25-358","tags":["Vendor Advisory"]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-864900.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53843"},{"url":"https://github.com/advisories/GHSA-69h7-jm2r-gmcg"}],"sources":{"cve":[{"id":"CVE-2025-53843","description":"A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets","status":"published","published":"2025-11-18T17:01:28.239Z","modified":"2026-10-15T01:09:15.88Z","cvss":[{"version":"3.1","score":6.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:32:48.853452Z"}],"euvd":[{"id":"EUVD-2025-198006","description":"A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets","status":"published","published":"2025-11-18T17:01:28Z","modified":"2026-10-15T01:09:15Z","cvss":[{"version":"3.1","score":6.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C","level":"medium"}],"updated_at":"2026-11-02T17:27:06.951216Z"}],"ghsa":[{"id":"GHSA-69h7-jm2r-gmcg","title":"A stack-based buffer overflow in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4...","description":"A stack-based buffer overflow in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets","status":"published","published":"2025-11-18T18:32:53Z","modified":"2026-06-09T12:32:00Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:08:40.238392Z"}],"nvd":[{"id":"CVE-2025-53843","description":"A stack-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions allows attacker to execute unauthorized code or commands via specially crafted packets","status":"published","published":"2025-11-18T17:16:03.033Z","modified":"2026-10-18T20:10:00.11Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:11:44.669367Z"}]}}