FortiOS CLI Command Bypass Vulnerability
Overview:
Fortinet has disclosed a high-severity vulnerability in FortiOS, the operating system powering FortiGate firewalls and VPN devices. Identified as CVE-2025-58325, this flaw allows an authenticated attacker with CLI access to bypass command restrictions and potentially gain full system control.
This vulnerability poses a serious risk to network security infrastructure, especially in environments where FortiGate appliances are exposed to internal or remote administrative access.
CVE Details:
| CVE | 2025-58325 |
| Severity | High |
| Base Score | 7.8 |
Who Is Impacted:
The Organizations or individuals using Fortinet FortiGate devices running vulnerable versions of FortiOS are impacted by this vulnerability.
- Any environment with FortiGate devices granting CLI access to administrators.
Affected FortiOS branches include: 7.6.x (specifically 7.6.0), 7.4.x, 7.2.x, 7.0.x and all FortiOS 6.4.x versions.
Note: Cloud-managed Fortinet services (such as FortiCloud-managed firewalls) are not impacted by this vulnerability.
How it impacts:
- Attack vector:
CVE-2025-58325 is a local privilege escalation vulnerability in the FortiOS Command Line Interface (CLI). It allows an attacker with existing administrative access to bypass built-in command restrictions and gain full control over the system.
Impact:
- Installs a persistent backdoor.
- Disables logs or security rules.
- Redirects or captures network traffic.
- Initiates system disruption or sabotage.
Targeted Products and Fixed Versions:
| FortiOS Branch | Affected Versions | Fixed Version |
| 7.6.x | 7.6.0 | 7.6.1 |
| 7.4.x | 7.4.0 – 7.4.5 | 7.4.6 |
| 7.2.x | 7.2.5 – 7.2.10 | 7.2.11 |
| 7.0.x | 7.0.0 – 7.0.15 | 7.0.16 |
Note: 6.4.x is End-of-Life — no patches will be available. Migration is mandatory for continued security.
Recommendations:
- Patch Immediately - Upgrade all affected FortiGate devices to a fixed version as listed above.
- Restrict CLI and administrative access to trusted personnel only, following the principle of least privilege.
- Enforce Multi-Factor Authentication (MFA) on all administrative accounts to strengthen access security.
Reference Links:
https://cybersecuritynews.com/fortios-cli-command-bypass-vulnerability/