CVE-2024-21953

MEDIUM EPSS 5.2%

Published Feb 10, 20264mo ago · Modified Jun 17, 20262w ago

5.9 CVSS 4.0

Medium

Published Feb 10, 2026 4mo ago

Last Modified Jun 17, 2026 2w ago

Description

Improper input validation in IOMMU could allow a malicious hypervisor to reconfigure IOMMU registers resulting in loss of guest data integrity.

CVSS Details

Base Score

5.9

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Local

Attack Complexity Low

Privileges Required High

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

5.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-1284

References 2

amd.com https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html
amd.com https://www.amd.com/en/resources/product-security/bulletin/Emb-Auto.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.