Introduction
Unauthorized code execution on a security appliance can undermine an organization's entire security posture. CVE-2025-58034 is a high-severity OS command injection vulnerability in Fortinet FortiWeb that may let authenticated attackers run arbitrary commands on the underlying system. FortiWeb is Fortinet's dedicated web application firewall, and it is widely deployed to protect web applications from a range of attacks.
Fortinet is a major cybersecurity vendor with a global customer base and a reputation for perimeter and application security products. Many enterprises build their security infrastructure around those products, so a vulnerability in a Fortinet appliance has an especially large impact.
Technical Information
CVE-2025-58034 is categorized under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'). The vulnerability affects FortiWeb versions 8.0.0 through 8.0.1, 7.6.0 through 7.6.5, 7.4.0 through 7.4.10, 7.2.0 through 7.2.11, and 7.0.0 through 7.0.11.
The flaw is in how FortiWeb handles input in certain HTTP requests or CLI commands. An authenticated attacker can craft input containing special characters or command sequences that the application does not properly sanitize. When FortiWeb processes this input, it can execute arbitrary operating system commands with the privileges of the FortiWeb process.
The root cause is insufficient input validation in the affected components. Exploitation requires a valid authenticated session. That narrows the attack surface, but the risk is still significant, especially in environments where multiple administrators or third-party integrations have access.
No public code snippets or vulnerable code locations have been disclosed. An attacker needs valid credentials and the ability to send crafted requests to the management interface or CLI.
Affected Systems and Versions
- FortiWeb 8.0.0 through 8.0.1
- FortiWeb 7.6.0 through 7.6.5
- FortiWeb 7.4.0 through 7.4.10
- FortiWeb 7.2.0 through 7.2.11
- FortiWeb 7.0.0 through 7.0.11
On these versions, all configurations that require authentication are potentially vulnerable.
Vendor Security History
Fortinet has previously fixed multiple critical vulnerabilities in its product lines, including OS command injection and SQL injection flaws. The company is a CVE Numbering Authority and assigns CVEs to its own products. Fortinet has faced criticism for silent patching and delayed disclosure, but it generally provides patches for supported products. Security teams should monitor Fortinet advisories and apply patches promptly.
