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Critical [CVE-2026-25089] Second-Order OS Command Injection via JSON Input on start vnc feature
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
Critical [CVE-2026-44277] Improper access control on API endpoints
CVSSv3 Score: 9.1 An Improper Access Control vulnerability [CWE-284] in FortiAuthenticator may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests. Revised on 2026-05-12 00:00:00
Critical [CVE-2026-26083] Incorrect global authorization
CVSSv3 Score: 9.1 A missing authorization vulnerability [CWE-862] in FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow an unauthenticated attacker to execute unauthorized code or commands via HTTP requests. Revised on 2026-05-12 00:00:00
Critical [CVE-2026-39808] OS Command Injection through API endpoint
CVSSv3 Score: 9.1 An Improper Neutralization of Special Elements used in an OS Command ('OS command injection') vulnerability [CWE-78] in FortiSandbox may allow an unauthenticated attacker to execute unauthorized code or commands via crafted HTTP requests. Revised on 2026-04-14 00:00:00 Affected product named by the advisory: FortiSandbox PaaS.
Critical [CVE-2026-39813] Unauthenticated Authentication bypass and Privilege escalation in FortiSandbox
CVSSv3 Score: 9.1 A Path Traversal vulnerability [CWE-24] in FortiSandbox JRPC API may allow an unauthenticated attacker to bypass authentication via specially crafted HTTP requests. Revised on 2026-04-14 00:00:00
Critical [CVE-2026-35616] API authentication and authorization bypass
CVSSv3 Score: 9.1 An Improper Access Control vulnerability [CWE-284] in FortiClient EMS may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests. Fortinet has observed this to be exploited in the wild and urges vulnerable customers to install the hotfix for FortiClient EMS 7.4.5 and 7.4.6, by following the instructions at: - for FortiClientEMS 7.4.5https://docs.fortinet.com/document/forticlient/7.4.6/ems-release-notes/832484 - for FortiClientEMS 7.4.6Upcoming FortiClientEMS 7.4.7 will also include a fix for this issue. In the meantime the hotfix above is sufficient to prevent it entirely. Revised on 2026-04-04 00:00:00