CVE-2024-21977

LowCVSS 3.2/10Last modified Nov 9, 2026

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.

Metrics

CVSS 3.1 3.2/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N

Weakness enumeration

CWE-459

Affected software

No affected versions have been published.

Timeline

Published: Sep 5, 2025
Last modified: Nov 9, 2026
NVD status: Deferred

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