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Gunra

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high threat

Gunra Ransomware Gang Exploitation of Fortinet Appliances

The Gunra ransomware-as-a-service group is leveraging critical Fortinet vulnerabilities (CVE-2024-55591 and CVE-2025-24472) to gain initial access, hijack VDI sessions, and bypass multi-factor authentication in attacks against critical infrastructure.

FortiOS +1 Gunra ransomware fortinet vpn critical-infrastructure authentication-bypass
4t 2c