Windows Virtualization-Based Security (VBS) Enclave Elevation of Privilege Vulnerability

What privileges would an attacker gain by successfully exploiting this vulnerability? An attacker who successfully exploited this vulnerability could potentially leak data from the target enclave or execute code within the context of the target enclave.

Are there any additional steps that I need to follow to be protected from this vulnerability? The changes to address this vulnerability updated Virtual Secure Mode components. The policy described in Guidance for blocking rollback of Virtualization-based Security (VBS) related security updates has been updated to account for the latest changes. If you deployed this policy, then you'll need to redeploy using the updated policy.