Cyber news

Research · Apr 14, 2026 · ZeroDay Catalog

Critical OS Command Injection Vulnerability in Fortinet FortiSandbox

A critical OS command injection vulnerability has been identified in Fortinet FortiSandbox, affecting versions 4.4.0 to 4.4.8, allowing potential unauthorized command execution.

What changed

Fortinet has disclosed a significant vulnerability in its FortiSandbox product, specifically versions 4.4.0 through 4.4.8. This vulnerability is characterized by improper neutralization of special elements used in OS commands, which could allow an attacker to execute unauthorized code or commands.

The implications of this vulnerability are serious, as it could lead to a complete compromise of the affected systems.

Who is affected

Organizations utilizing Fortinet FortiSandbox versions 4.4.0 to 4.4.8 are at risk. This includes enterprises that rely on FortiSandbox for malware analysis and threat detection.

Additionally, any security operations teams using these versions for incident response may find their systems vulnerable.

  • Fortinet FortiSandbox 4.4.0
  • Fortinet FortiSandbox 4.4.1
  • Fortinet FortiSandbox 4.4.2
  • Fortinet FortiSandbox 4.4.8

What to do

It is crucial for affected organizations to take immediate action to mitigate the risks associated with this vulnerability. Users should upgrade their FortiSandbox installations to the latest version as soon as possible.

In addition, security teams should review their incident response protocols to ensure they are prepared for any potential exploitation of this vulnerability.

  • Upgrade FortiSandbox to a patched version.
  • Monitor systems for unusual activity.
  • Review and update security policies.
  • Implement additional network segmentation if necessary.

Original report