CVE-2024-21977 LOW

CVE-2024-21977

Weakness CWE-459
Published September 5, 2025
Last update September 5, 2025
View on NVD All CVEs

CVSS base score

3.2/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

September 5, 2025 CVE published
September 5, 2025 Record updated