CVE-2025-64666 | Microsoft Exchange Server input validation (Nessus ID 278114)
A vulnerability was found in Microsoft Exchange Server and classified as critical. The impacted element is an unknown function. The manipulation results in improper input validation.
This vulnerability is known as CVE-2025-64666. It is possible to launch the attack remotely. No exploit is available.
It is best practice to apply a patch to resolve this issue.