Physical Attacks Leading to Bypass of ASP Boot ROM Secure Boot
Summary
Researchers shared a report titled “Code Execution on Zen 4 PSP using Voltage Fault Injection.”
In the paper, the researchers reported their findings on Voltage Fault Injection (VFI) attacks targeting AMD “Zen 4” CPUs, specifically the Ryzen™ 8600G model. The researchers claim these types of attacks could potentially enable them to perform the faulTPM attack on Zen 4-based CPUs and circumvent the Platform Secure Boot (PSB) security feature.
Physical attacks such as VFI fall outside the scope of the threat model of affected AMD products.
Affected Products
AMD EPYC™ “Zen 4” and prior Processors
AMD EPYC™ Embedded “Zen 4” and prior Processors
AMD Instinct™ MI-200/MI-300/MI-350 series
AMD Ryzen™ “Zen 4” and prior Processors
AMD Ryzen™ 9000HX series processors
AMD Ryzen™ 9000 series Desktop processors
AMD Ryzen™ Embedded “Zen 4” and prior Processors
AMD Radeon™ RX 7000/6000/5000/VII/Vega Series
AMD Radeon™ PRO W7000/6000/5000/VII/Vega Series
AMD Radeon™ Pro V Series GPUs
Acknowledgement
AMD thanks Niklas Jacob for sharing the report and engaging in coordinated disclosure.
Revisions
| Revision Date | Description |
| 2025-08-12 | Initial publication |
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