Fortinet FortiSIEM up to 7.3.1 CLI os command injection

Summaryinfo

A vulnerability marked as critical has been reported in Fortinet FortiSIEM up to 7.3.1. This issue affects some unknown processing of the component CLI. Performing a manipulation results in os command injection. This vulnerability is known as CVE-2025-25256. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Fortinet FortiSIEM up to 7.3.1. It has been classified as very critical. This affects an unknown code of the component CLI. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at fortiguard.fortinet.com. This vulnerability is uniquely identified as CVE-2025-25256 since 02/05/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/16/2025). MITRE ATT&CK project uses the attack technique T1202 for this issue.

It is declared as attacked.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Zero-Day.cz (1021), EUVD (EUVD-2025-24462) and CERT Bund (WID-SEC-2025-1808). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Fortinet FortiSIEM

Productinfo

Vendor

• Fortinet

Name

• FortiSIEM

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4.0
• 6.1.0
• 6.1.1
• 6.1.2
• 6.2.0
• 6.2.1
• 6.3.0
• 6.3.1
• 6.3.2
• 6.3.3
• 6.4.0
• 6.4.1
• 6.4.2
• 6.4.3
• 6.4.4
• 6.5.0
• 6.5.1
• 6.5.2
• 6.5.3
• 6.6.0
• 6.6.1
• 6.6.2
• 6.6.3
• 6.6.4
• 6.6.5
• 6.7.0
• 6.7.1
• 6.7.2
• 6.7.3
• 6.7.4
• 6.7.5
• 6.7.6
• 6.7.7
• 6.7.8
• 6.7.9
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.1.0
• 7.1.1
• 7.1.2
• 7.1.3
• 7.1.4
• 7.1.5
• 7.1.6
• 7.1.7
• 7.2.0
• 7.2.1
• 7.2.2
• 7.2.3
• 7.2.4
• 7.2.5
• 7.3.0
• 7.3.1

License

• commercial

Website

• Vendor: https://www.fortinet.com/

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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