CVE-2024-21977 – AMD SEV-SNP RDRAND Entropy Depletion Vulnerability

CVE ID : CVE-2024-21977

Published : Sept. 5, 2025, 12:58 p.m. | 16 minutes ago

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.

Severity: 3.2 | LOW

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