ZDI-26-645: Fortinet FortiSandbox write_remote_backup_to_crontab cronValue Command Injection Remote Code Execution Vulnerability
ZDI publishes ZDI-26-645 for CVE-2026-84387, an authenticated command injection RCE in Fortinet FortiSandbox via crontab backup, rated CVSS 7.2.
Zero Day Initiative published advisory ZDI-26-645 describing a command injection flaw in Fortinet FortiSandbox's write_remote_backup_to_crontab function. Remote authenticated attackers can execute arbitrary code through the cronValue parameter. ZDI rated the issue CVSS 7.2 and assigned CVE-2026-84387.