Upgrade FortiSandbox
Fortinet disclosed CVE-2026-25089, a second-order operating-system command injection risk in FortiSandbox's start-VNC workflow.
At a glance
- The issue involves specially crafted JSON input.
- Security teams should update to a fixed release and restrict administrative interfaces.
Why this matters
Fortinet disclosed CVE-2026-25089, a second-order operating-system command injection risk in FortiSandbox's start-VNC workflow.
Security teams should translate the official notice into an inventory decision, an accountable owner and documented verification rather than treating publication alone as remediation.
Who should act
- Security and technology leaders responsible for the affected platform
- Vulnerability management, cloud security and security operations teams
- Risk, compliance and service owners who track remediation evidence
SecurityTalent action checklist
- Read the linked primary source and confirm whether your products, versions, services or workflows are affected.
- Identify an accountable owner and prioritize the change according to exposure, severity and available mitigations.
- Apply the vendor guidance or compensating controls, then verify the resulting configuration or fixed version.
- Monitor the official source for revisions and preserve evidence of the assessment and remediation decision.
Source and attribution
Primary source: FG-IR-26-141
- Publisher
- Fortinet
- Author / authority
- Fortinet PSIRT
- Published
- June 8, 2026
- SecurityTalent review
- July 18, 2026
This is an original SecurityTalent summary and analysis based on the linked primary source. It is not a republication. The source controls if facts, versions or deadlines change after our review.