Description

Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.

INFO

Published Date :

2025-09-05T12:58:39.312Z

Last Modified :

2025-09-05T13:35:08.152Z

Source :

AMD
AFFECTED PRODUCTS

The following products are affected by CVE-2024-21977 vulnerability.

Vendors Products
Amd
  • Epyc
  • Epyc 7003
  • Epyc 8004
  • Epyc 9004
  • Epyc Embedded 7003
  • Epyc Embedded 9004
  • Ryzen 5000 Series Desktop Processors
  • Ryzen 5000 Series Mobile Processors With Radeon Graphics
  • Ryzen 6000 Series Processors With Radeon Graphics
  • Ryzen 7000 Series Desktop Processors
  • Ryzen 7030 Series Mobile Processors With Radeon Graphics
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-21977.

URL Resource
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html cve-icon cve-icon
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html cve-icon cve-icon
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact