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Fortinet PSIRT AdvisoriesFG-IR-26-141

Second-Order OS Command Injection via JSON Input on start vnc feature

CriticalVendor CVSS 9.1 / 10 0 CVEs Published Jun 9, 2026 at 7:00 AM UTC

Summary

CVSSv3 Score: 9.1 An improper neutralization of special elements used in an OS command vulnerability [CWE-78] in FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow an unauthenticated attacker to execute unauthorized commands via specifically crafted HTTP requests. Revised on 2026-06-09 00:00:00

Products covered

  • FortiSandbox

  • FortiSandbox Cloud

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 0

No CVE identifiers were listed in the collected bulletin.

Updates

  1. Published by Fortinet

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.