CVE-2023-31364CWE-119

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…

High · published February 26, 2026

CVSS v4.0
8.3
EPSS
0%
Percentile
14.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.3 · HIGH
Vector
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
EPSS
0.00240 · 14.1th percentile
Weakness
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
Published
2026-02-26T20:33Z
EPSS history
Timeline
  • 26 FEB 20:33Z
    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…
    cvelistv5