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CRITICAL

CVE-2025-64155

CVSS v3

9.8

CRITICAL

EPSS Score

42.8 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

poc

SSVC status

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.

Technical details

Published
2026-01-13
Last Modified
2026-01-20

Frequently asked questions

What is CVE-2025-64155?

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.

Is CVE-2025-64155 actively exploited?

A proof-of-concept exploit exists for CVE-2025-64155, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-64155?

CVE-2025-64155 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2025-64155 affecting your environment?

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