Attackers exploit Fortinet flaws to deploy Qilin ransomware
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2024-21762 | Out-of-Bounds Write RCE in Fortinet FortiOS and FortiProxy | 9.8 | 85% | KEVRansomware | KEV |
| CVE-2024-55591 | Unauthenticated Super-Admin Bypass in Fortinet FortiOS and FortiProxy | 9.8 | 94% | KEVRansomware | KEV |
| CVE-2025-24472 | Authentication Bypass in Fortinet FortiOS and FortiProxy Grants Super-Admin Access | 8.1 | 7% | KEVRansomware | KEV |
From the original article
2 min read at securityaffairs.com
Qilin ransomware now exploits Fortinet vulnerabilities to achieve remote code execution on impacted devices. Threat intelligence firm PRODAFT warned that Qilin ransomware (aka Phantom Mantis) group targeted multiple organizations between May and June 2025 by exploiting multiple FortiGate vulnerabilities, including CVE-2024-21762 , and CVE-2024-55591 .
By @securityaffairs · securityaffairs.com
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