Unauthenticated Control of NAT Rules Leading to Exposure of Sensitive Information
CVSSv3 Score: 8.9 An improper access control vulnerability in FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow an unauthenticated attacker to access sensitive information via crafted HTTP requests. Revised on 2026-09-08 00:00:00
Platform
FortiGate / FortiOS
CVSS Score
8.9/10
Advisory
FG-IR-26-166
Published
08 September 2026
Views
33
Primary source: Review the official advisory at fortiguard.fortinet.com
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Summary
CVSSv3 Score: 8.9 An improper access control vulnerability in FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS WEB UI may allow an unauthenticated attacker to access sensitive information via crafted HTTP requests. Revised on 2026-09-08 00:00:00
Fortinet FortiOS, FortiSwitchManager, and FortiSASE contain a heap-based buffer overflow vulnerability that allows an attacker to execute unauthorized code or commands via specially crafted packets.
CVSSv3 Score: 7.3 An improper certificate validation vulnerability in FortiOS and FortiProxy Agentless ZTNA portal may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the ZTNA portal and the backend destination website. Revised on 2026-09-08 00:00:00
CVSSv3 Score: 4.7 An improper access control vulnerability in FortiManager may allow an administrator to bypass the approval process for workflow sessions via crafted HTTP or HTTPs requests. Revised on 2026-09-08 00:00:00