Fortinet FortiDeceptor up to 6.2.0 HTTP argument injection

Summaryinfo

A vulnerability categorized as critical has been discovered in Fortinet FortiDeceptor up to 6.2.0. This impacts an unknown function of the component HTTP Handler. The manipulation results in argument injection. This vulnerability is identified as CVE-2026-25689. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Fortinet FortiDeceptor up to 6.2.0. It has been classified as critical. Affected is an unknown functionality of the component HTTP Handler. The manipulation with an unknown input leads to a argument injection vulnerability. CWE is classifying the issue as CWE-88. The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An improper neutralization of argument delimiters in a command ('argument injection') vulnerability in Fortinet FortiDeceptor 6.2.0, FortiDeceptor 6.0 all versions, FortiDeceptor 5.3 all versions, FortiDeceptor 5.2 all versions, FortiDeceptor 5.1 all versions, FortiDeceptor 5.0 all versions, FortiDeceptor 4.3 all versions, FortiDeceptor 4.2 all versions, FortiDeceptor 4.1 all versions, FortiDeceptor 4.0 all versions may allow a privileged attacker with super-admin profile and CLI access to delete sensitive files via crafted HTTP requests.

The advisory is available at fortiguard.fortinet.com. This vulnerability is traded as CVE-2026-25689 since 02/05/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation needs additional levels of successful authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/13/2026). This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Fortinet

Name

• FortiDeceptor

Version

• 4.0
• 4.0.0
• 4.0.1
• 4.0.2
• 4.1
• 4.1.0
• 4.1.1
• 4.2
• 4.2.0
• 4.3.0
• 5.0
• 5.1.0
• 5.2.0
• 5.2.1
• 5.2.2
• 5.3.0
• 5.3.1
• 5.3.2
• 5.3.3
• 5.3.4
• 6.0
• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.1
• 6.2.0

License

• commercial

Website

• Vendor: https://www.fortinet.com/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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