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CVE-2026-25689: Argument injection in FortiDeceptor
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.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| FortiDeceptor 6.2 | 6.2.1 or later |
| FortiDeceptor 6.0.0 to 6.0.3 | Upgrade past 6.0.3; see the advisory |
| FortiDeceptor 5.3.0 to 5.3.4 | Upgrade past 5.3.4; see the advisory |
| FortiDeceptor 5.2.0 to 5.2.2 | Upgrade past 5.2.2; see the advisory |
| FortiDeceptor 5.1 | See the advisory |
| FortiDeceptor 5.0 | See the advisory |
| FortiDeceptor 4.3 | See the advisory |
| FortiDeceptor 4.2 | See the advisory |
| FortiDeceptor 4.1.0 to 4.1.1 | Upgrade past 4.1.1; see the advisory |
| FortiDeceptor 4.0.0 to 4.0.2 | Upgrade past 4.0.2; see the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
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.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.