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VulnerabilitiesNov 13, 2026

New Mior and Skyfall Attacks Let Rogue Cloud Hosts Steal Secrets From AMD SEV-SNP VMs

Two new attacks, Mior and Skyfall, allow malicious cloud hosts to steal data from AMD SEV-SNP protected VMs.

Two new attacks, Mior and Skyfall, have been disclosed that enable a malicious cloud host to access data within AMD SEV-SNP protected virtual machines. Mior additionally has the capability to alter a VM's memory and falsify software attestation reports. Both attacks require hypervisor control, with Mior also needing BIOS control.

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AMD SEV-SNP (technology)virtual machines (product)