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CVE-2021-26402
Published: Jan 10, 2023
Modified: Apr 8, 2025
PUBLISHED
Description
Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.
| Vendor | Product | Versions |
|---|---|---|
AMD | 2nd Gen EPYC | affected Various |
AMD | 3rd Gen EPYC | affected various |
References
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