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New Battering RAM Attack Exposes Intel and AMD Vulnerabilities

10/1/2025

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Summary

Story summary

Disclosed by KU Leuven and the University of Birmingham, the Battering RAM vulnerability targets Intel Software Guard Extensions (Intel SGX) and AMD Secure Encrypted Virtualization (SEV-SNP).
The attack uses a $50 DDR4 interposer to manipulate memory addresses, enabling access to encrypted data and fake VMs.
Intel and AMD acknowledged the flaw but say physical attacks are outside their threat models.

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Story summary

Disclosed by KU Leuven and the University of Birmingham, the Battering RAM vulnerability targets Intel Software Guard Extensions (Intel SGX) and AMD Secure Encrypted Virtualization (SEV-SNP).
The attack uses a $50 DDR4 interposer to manipulate memory addresses, enabling access to encrypted data and fake VMs.
Intel and AMD acknowledged the flaw but say physical attacks are outside their threat models.