CVE-2021-26322

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-320 CWE-330

Affected software

Vendor	Product	Versions
AMD	1st Gen AMD EPYC™	>= unspecified, < NaplesPI-SP3_1.0.0.G
AMD	2nd Gen AMD EPYC™	>= unspecified, < RomePI-SP3_1.0.0.C
AMD	3rd Gen AMD EPYC™	>= unspecified, < MilanPI-SP3_1.0.0.4

References

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1021Vendor Advisory

Timeline

Published: Nov 16, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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