CVE-2021-26402 — AMD / 2nd Gen EPYC

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
AMD / 2nd Gen EPYC	affected Various
AMD / 3rd Gen EPYC	affected various

CWE

No CWE identifiers supplied.

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

ADP enrichment

CVE

No English description supplied.

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

CISA-ADP

No English description supplied.

No references supplied.