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How the CVE Works
CVE-2025-22251 exploits an improper restriction of communication channels in FortiOS (CWE-923). An attacker can craft malicious FGSP (FortiGate Session Protocol) synchronization packets and send them to vulnerable FortiOS devices. This allows session injection without authentication, potentially leading to unauthorized access, data manipulation, or network compromise. The vulnerability affects multiple versions, including 7.6.0, 7.4.0-7.4.5, and all releases of 7.2, 7.0, and 6.4.
DailyCVE Form
Platform: FortiOS
Version: 6.4-7.6.0
Vulnerability: Session Injection
Severity: Critical
Date: 07/25/2025
Prediction: Patch by Q3 2025
What Undercode Say
Analytics:
nmap -p443 --script fortios-cve-2025-22251 <target>
exploit_packet = craft_fgsp_packet(target_ip, session_data) send(exploit_packet)
How Exploit:
- Craft FGSP packets
- Spoof synchronization requests
- Bypass authentication
Protection from this CVE:
- Disable FGSP if unused
- Apply vendor patches
- Network segmentation
Impact:
- Unauthorized access
- Data exfiltration
- Network compromise
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
