A critical OS command injection vulnerability has been discovered in Fortinet’s FortiWeb security platform, with active exploitation confirmed in real-world environments.
Tracked as CVE-2025-58034, the flaw allows authenticated attackers with elevated privileges to execute arbitrary code on vulnerable systems through specially crafted HTTP requests or command-line interface commands.
Fortinet disclosed the vulnerability on November 18, 2025, assigning it the internal reference FG-IR-25-513.
Vulnerability Overview
| Aspect | Details |
|---|---|
| CVE ID | CVE-2025-58034 |
| Vulnerability Type | OS Command Injection (CWE-78) |
| CVSS Score | 6.7 (Medium) |
| Attack Vector | Network |
| Authentication Required | Yes (Elevated Privileges) |
| Impact | Remote Code Execution (RCE) |
| Status | Actively Exploited in the Wild |
| Disclosure Date | November 18, 2025 |
| Discoverer | Jason McFadyen (Trend Micro) |
| Advisory Reference | FG-IR-25-513 |
Technical Details and Attack Prerequisites
The vulnerability stems from improper neutralization of special elements used in operating system commands, classified under CWE-78, a recognized attack vector for bypassing security controls and gaining unauthorized system access.
Although exploitation requires authentication with elevated privileges, attackers who obtain valid credentials gain a direct pathway to executing arbitrary code on the underlying operating system.
Once compromised, attackers can achieve complete system compromise, exfiltrate sensitive data, or conduct lateral movement within enterprise networks.
Organizations must immediately upgrade their FortiWeb deployments to patched versions. The following minimum versions address the vulnerability:
FortiWeb 8.0 requires upgrading to version 8.0.2 or later; FortiWeb 7.6 to 7.6.6 or later; FortiWeb 7.4 to 7.4.11 or later; FortiWeb 7.2 to 7.2.12 or later; and FortiWeb 7.0 to 7.0.12 or later.
While the CVSS v3.1 score of 6.7 reflects medium severity, the active exploitation and code-execution capabilities elevate this to a high-priority remediation issue.
Security teams should conduct an urgent inventory of all FortiWeb deployments and current versions.
IT teams must prioritize testing patches in non-production environments before deployment to live systems.
Organizations unable to patch immediately should implement additional access controls restricting authenticated access to FortiWeb systems and monitor logs for suspicious command execution patterns.
Fortinet has provided comprehensive vulnerability documentation, including CVRF and CSAF files, for integration into security tools and vulnerability management platforms.
Security teams should review historical logs for potential exploitation attempts and verify system integrity on affected deployments.
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