FortiSandbox Vulnerability Allows Attackers to Access VNC Servers of VMs

The high-severity CVE-2026-59835 vulnerability in FortiSandbox allows unauthenticated attackers to access VNC servers of malware-scanning virtual machines via crafted network requests. Affected organizations must patch their on-premises FSA-500G and FSA-1500G appliances by upgrading to the specified secure versions.