CVE-2025-4276

7.5 HIGH

Published: August 13, 2025 Modified: April 15, 2026

Description

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

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

0.0 Low Medium High Critical 10.0

Vector String

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

Patch Vendor Advisory Exploit Third Party Advisory

Source: 8338d8cb-57f7-4252-abc0-96fd13e98d21

1 reference(s) from NVD

CVSS v3 Score

7.5 / 10.0

EPSS (Exploit Probability)

0.0%

7th percentile

Exploitation Status

Not in CISA KEV

CWE-20