#4
The Hacker News
general
November 13, 2026 at 15:27 UTC
New Mior and Skyfall Attacks Let Rogue Cloud Hosts Steal Secrets From AMD SEV-SNP VMs
By [email protected] (The Hacker News)
AI Summary
Researchers disclosed two new attacks, Mior and Skyfall, against AMD SEV-SNP confidential VMs: Skyfall allows a malicious hypervisor to read VM memory, while Mior additionally enables memory modification and forging of attestation reports, undermining the cryptographic guarantees that SEV-SNP provides. Both require hypervisor-level compromise, and Mior also requires BIOS control. Cloud tenants relying on AMD SEV-SNP for workload isolation should evaluate vendor mitigations and reassess their trust models for shared infrastructure.
Relevance score: 87.0/100
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