Fortinet security advisory (AV25-821)
ID: 74c7c443-5b20-5d4f-ba68-488fc6efa629
STIX ID: report--74c7c443-5b20-5d4f-ba68-488fc6efa629
Feed Name: Canadian Centre for Cyber Security Alerts and Advisories
Fortinet published advisories on December 9, 2025 for multiple products fixing two critical vulnerabilities (CVE-2025-59718, CVE-2025-59719) across FortiOS, FortiProxy, FortiWeb, and FortiSwitchManager; exploitation requires FortiCloud SSO Login Authentication to be enabled. CISA added CVE-2025-59718 to its Known Exploited Vulnerabilities list on December 16, 2025 and open-source reporting indicates active exploitation, so administrators should review the advisory and apply updates to affected versions.
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