CVE-2025-4276

—

CVSS 3.1

7.5 high

EPSS

<1%p4

Published

Aug 13, 2025 (Aug 13, 2025)

Modified

Jun 17, 2026

Description

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

Weakness: CWE-20
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.1%)

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