CVE-2026-25690: Fortinet Fortideceptor

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

An improper neutralization of argument delimiters in a command ('argument injection') vulnerability in Fortinet FortiDeceptor 6.0.0 through 6.0.2, FortiDeceptor 5.3.0 through 5.3.3, FortiDeceptor 5.2.0 through 5.2.1, FortiDeceptor 5.1 all versions, FortiDeceptor 5.0 all versions may allow an authenticated attacker with at least read-only admin permission to read log files via HTTP crafted requests.

Affected products

• Fortinet Fortideceptor: from 5.0.0, up to and including 5.1.0; from 5.3.0, up to and including 5.3.3; from 6.0.0, up to and including 6.0.2; version 5.2.0 only; version 5.2.1 only

Published 2026-05-12. Last modified 2026-06-17.