CVE-2025-4276CWE-20

UsbCoreDxe: improper input validation may lead to arbitrary code execution

High · published August 13, 2025

CVSS v3.1
7.5
EPSS
0%
Percentile
3.2
In the wild
Unconfirmed
What it is

UsbCoreDxe has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00142 · 3.2th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2025-08-13T01:41Z
EPSS history
Timeline
  • 13 AUG 01:41Z
    UsbCoreDxe: improper input validation may lead to arbitrary code execution
    cvelistv5