At the start of the year, cybercriminals were exploiting three vulnerabilities in FortiGate Next-Generation Firewalls (NGFW) to establish persistence and move laterally throughout the network.
All recorded attacks were stopped before they could do any meaningful harm, and FortiGate has since issued patches to mitigate the risk. Between December 2025 and February 2026, security researchers SentinelOne observed multiple attacks leveraging three distinct vulnerabilities. The first two are tracked as CVE-2025-59718 and CVE-2025-59719 (severity score 9.8/10), and both are rooted in improper verification of cryptographic signatures.
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Source: TechRadar News
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