FortiDeceptor 6.x Arg Injection via CLI HTTP Requests Allow Delete Files (CVE-2026-25689)
CVE-2026-25689 Published on March 10, 2026
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.
Vulnerability Analysis
CVE-2026-25689 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity and availability.
Weakness Type
What is an Argument Injection Vulnerability?
The software constructs a string for a command to 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.
CVE-2026-25689 has been classified to as an Argument Injection vulnerability or weakness.
Products Associated with CVE-2026-25689
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Affected Versions
Fortinet FortiDeceptor:- Version 6.2.0 is affected.
- Version 6.0.0, <= 6.0.3 is affected.
- Version 5.3.0, <= 5.3.4 is affected.
- Version 5.2.0, <= 5.2.2 is affected.
- Version 5.1.0 is affected.
- Version 5.0.0 is affected.
- Version 4.3.0 is affected.
- Version 4.2.0 is affected.
- Version 4.1.0, <= 4.1.1 is affected.
- Version 4.0.0, <= 4.0.2 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.