Fortinet Warns About FortiSIEM Vulnerability (CVE-2025-25256) With In-the-Wild Exploit Code
Aug 13, 2025
Vulnerability / Network Security
Fortinet is alerting customers of a critical security flaw in FortiSIEM for which it said there exists an exploit in the wild. The vulnerability, tracked as CVE-2025-25256 , carries a CVSS score of 9.8 out of a maximum of 10.0. "An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in FortiSIEM may allow an unauthenticated attacker to execute unauthorized code or commands via crafted CLI requests," the company said in a Tuesday advisory. The following versions are impacted by the flaw - FortiSIEM 6.1, 6.2, 6.3, 6.4, 6.5, 6.6 (Migrate to a fixed release) FortiSIEM 6.7.0 through 6.7.9 (Upgrade to 6.7.10 or above) FortiSIEM 7.0.0 through 7.0.3 (Upgrade to 7.0.4 or above) FortiSIEM 7.1.0 through 7.1.7 (Upgrade to 7.1.8 or above) FortiSIEM 7.2.0 through 7.2.5 (Upgrade to 7.2.6 or above) FortiSIEM 7.3.0 through 7.3.1 (Upgrade to 7.3.2 or above) FortiSIEM 7.4 (Not affected) Fortinet acknowledged i...