Critical Fortinet FortiSandbox Vulnerabilities Actively Exploited in Attacks

Threat actors are actively exploiting multiple critical vulnerabilities in Fortinet’s FortiSandbox platform, with live attack telemetry confirming exploitation attempts over the past 24 hours. Defused has flagged three CVEs under active targeting — including one, CVE-2026-39813, with no previously recorded exploitation history. Honeypot sensors and deception infrastructure disguised as Fortinet FortiSandbox instances have captured exploitation […]

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