{"id":"CVE-2025-25256","title":"An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] vulnerability in Fortinet FortiSIEM 7.3.0 through 7.3.1, FortiSIEM 7.2.0 through 7.2.5, FortiSIEM 7.1.0 through 7.1.7, F…","summary":"An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] vulnerability in Fortinet FortiSIEM 7.3.0 through 7.3.1, FortiSIEM 7.2.0 through 7.2.5, FortiSIEM 7.1.0 through 7.1.7, F…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-78"],"vendor":"fortinet","product":"fortisiem","affected":["fortisiem >= 5.4.0, < 6.7.10","fortisiem >= 7.0.0, < 7.0.4","fortisiem >= 7.1.0, < 7.1.8","fortisiem >= 7.2.0, < 7.2.6","fortisiem >= 7.3.0, < 7.3.2"],"patched":["fortisiem 7.3.2"],"published":"2025-08-12","updated":"2026-08-18","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-25256","references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-25-152","label":"psirt@fortinet.com"},{"url":"https://www.theregister.com/2025/08/13/fortinet_discloses_critical_bug/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/watchtowrlabs/watchTowr-vs-FortiSIEM-CVE-2025-25256","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://labs.watchtowr.com/should-security-solutions-be-secure-maybe-were-all-wrong-fortinet-fortisiem-pre-auth-command-injection-cve-2025-25256/","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","exploit-available"],"epss":0.64704,"epssPercentile":0.99206,"ingestedAt":"2026-08-18T21:22:57.552Z","exploits":{"github":1,"githubRepos":["https://github.com/watchtowrlabs/watchTowr-vs-FortiSIEM-CVE-2025-25256"],"nuclei":["network/cves/2025/CVE-2025-25256"],"checkedAt":"2026-09-23T07:13:35.217Z"},"exploitAvailable":true,"slug":"CVE-2025-25256","body":"## Overview\n\nAn improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] vulnerability in Fortinet FortiSIEM 7.3.0 through 7.3.1, FortiSIEM 7.2.0 through 7.2.5, FortiSIEM 7.1.0 through 7.1.7, FortiSIEM 7.0.0 through 7.0.3, FortiSIEM 6.7.0 through 6.7.9, FortiSIEM 6.6 all versions, FortiSIEM 6.5 all versions, FortiSIEM 6.4 all versions, FortiSIEM 6.3 all versions, FortiSIEM 6.2 all versions, FortiSIEM 6.1 all versions, FortiSIEM 5.4 all versions, FortiSIEM 5.3 all versions, FortiSIEM 5.2 all versions, FortiSIEM 5.1 all versions, FortiSIEM 5.0 all versions, FortiSIEM 4.10 all versions, FortiSIEM 4.9 all versions, FortiSIEM 4.7 all versions allows an unauthenticated attacker to execute unauthorized code or commands via crafted CLI requests.\n\n## Affected\n\n- `fortisiem >= 5.4.0, < 6.7.10`\n- `fortisiem >= 7.0.0, < 7.0.4`\n- `fortisiem >= 7.1.0, < 7.1.8`\n- `fortisiem >= 7.2.0, < 7.2.6`\n- `fortisiem >= 7.3.0, < 7.3.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `fortisiem 7.3.2`","depth":"abyssal","depthScore":79,"depthScoreParts":{"impact":53.9,"likelihood":12.9,"exploitation":12,"ransomware":0},"changes":[{"seq":4798,"id":"CVE-2025-25256","ts":1788887207715,"field":"exploit_available","old":"false","new":"true"},{"seq":3681,"id":"CVE-2025-25256","ts":1788886324329,"field":"exploit_available","old":"true","new":"false"},{"seq":2528,"id":"CVE-2025-25256","ts":1788883003323,"field":"exploit_available","old":"false","new":"true"},{"seq":1557,"id":"CVE-2025-25256","ts":1788882405519,"field":"exploit_available","old":"true","new":"false"},{"seq":671,"id":"CVE-2025-25256","ts":1788881843305,"field":"exploit_available","old":"false","new":"true"}]}