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CRITICAL

CVE-2025-25256

CVSS v3

9.8

CRITICAL

EPSS Score

64.7 %

exploit probability, as of 2026-10-04

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in Fortinet FortiSIEM version 7.3.0 through 7.3.1, 7.2.0 through 7.2.5, 7.1.0 through 7.1.7, 7.0.0 through 7.0.3 and before 6.7.9 allows an unauthenticated attacker to execute unauthorized code or commands via crafted CLI requests.

Technical details

Published
2025-08-12

Frequently asked questions

What is CVE-2025-25256?

An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in Fortinet FortiSIEM version 7.3.0 through 7.3.1, 7.2.0 through 7.2.5, 7.1.0 through 7.1.7, 7.0.0 through 7.0.3 and before 6.7.9 allows an unauthenticated attacker to execute unauthorized code or commands via crafted CLI requests.

Is CVE-2025-25256 actively exploited?

Active exploitation of CVE-2025-25256 has not been confirmed. Its EPSS score was 64.7% on 2026-10-04, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-25256?

CVE-2025-25256 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2025-25256 affecting your environment?

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