Improper Neutralization of Argument Delimiters in a Command in FortiDeceptor - CVE-2026-25690

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Main Vulnerability Database Vulnerabilities #VU131205

Improper Neutralization of Argument Delimiters in a Command in FortiDeceptor - CVE-2026-25690

Published: May 12, 2026


Vulnerability identifier: #VU131205
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-25690
CWE-ID: CWE-88
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Fortinet, Inc
Affected software:
FortiDeceptor

Detailed vulnerability description

The vulnerability allows a remote user to read log files.

The vulnerability exists due to improper neutralization of argument delimiters in a command in the FortiDeceptor web UI when handling crafted HTTP requests. A remote user can send a specially crafted request to read log files.

The issue requires at least read-only administrative permission.


How to mitigate CVE-2026-25690

Install security update from vendor's website.

Sources