What’s Vulnerable › Vulnerabilities

CVE-2025-64155

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 43.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-13 · updated 2026-06-17
• Weakness: CWE-78

Description

An improper neutralization of special elements used in an os command ('os command injection') vulnerability in Fortinet FortiSIEM 7.4.0, FortiSIEM 7.3.0 through 7.3.4, FortiSIEM 7.1.0 through 7.1.8, FortiSIEM 7.0.0 through 7.0.4, FortiSIEM 6.7.0 through 6.7.10 may allow an attacker to execute unauthorized code or commands via crafted TCP requests.

Affected products

• Fortinet FortiSIEM: from 6.7.0 before 7.1.9; from 7.2.0 before 7.2.7; from 7.3.0 before 7.3.5; 7.4.0 — fixed in 7.1.9, 7.2.7, 7.3.5

How to fix

Upgrade to a fixed version: Fortinet FortiSIEM 7.1.9, 7.2.7, 7.3.5. Check the vendor advisory for mitigations.

References

• https://fortiguard.fortinet.com/psirt/FG-IR-25-772
• https://github.com/horizon3ai/CVE-2025-64155
• https://github.com/purehate/CVE-2025-64155-hunter

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