The CVE-2025-66228 entry was reserved by Fortinet but subsequently rejected, meaning it was either a duplicate, invalid, or otherwise not accepted as a valid vulnerability. No technical details, affected products, or exploitation information have been published. The lack of a CVSS score and absence of patch or mitigation information further confirm that this is not an active vulnerability. Without any data on the nature of the vulnerability, its attack vector, or impact, it cannot be analyzed as a security threat. The rejection status in the CVE database indicates that this entry should not be treated as a security concern.

Given that CVE-2025-66228 is a rejected entry with no known exploits or affected systems, there is no impact to European organizations or any other stakeholders. No confidentiality, integrity, or availability risks have been identified. Therefore, this entry poses no threat or operational risk.

No specific mitigation is required for CVE-2025-66228 since it is not a valid or active vulnerability. Organizations should continue to follow standard security best practices and monitor official advisories for confirmed vulnerabilities affecting their systems.