CVE-2023-31364
HIGH EPSS 15.8%
Published Feb 26, 20264mo ago · Modified Apr 15, 20262mo ago
8.3 CVSS 4.0
Published Feb 26, 2026 4mo ago
Last Modified Apr 15, 2026 2mo ago
Description
Improper handling of direct memory writes in the input-output memory management unit could allow a malicious guest virtual machine (VM) to flood a host with writes, potentially causing a fatal machine check error resulting in denial of service.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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 Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
15.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
References 1
- amd.com https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7059.html
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.