CVE-2025-14303

high

Description

Certain motherboard models developed by MSI has a Protection Mechanism Failure vulnerability. Because IOMMU was not properly enabled, unauthenticated physical attackers can use a DMA-capable PCIe device to read and write arbitrary physical memory before the OS kernel and its security features are loaded.

References

https://csr.msi.com/global/product-security-advisories

https://www.bleepingcomputer.com/news/security/new-uefi-flaw-enables-pre-boot-attacks-on-motherboards-from-gigabyte-msi-asus-asrock/

https://thehackernews.com/2025/12/new-uefi-flaw-enables-early-boot-dma.html

https://securityaffairs.com/185867/security/asrock-asus-gigabyte-msi-boards-vulnerable-to-pre-boot-memory-attacks.html

https://www.securityweek.com/uefi-vulnerability-in-major-motherboards-enables-early-boot-attacks/

https://www.twcert.org.tw/tw/cp-132-10576-0a0fd-1.html

https://www.twcert.org.tw/en/cp-139-10577-3cd58-2.html

Details

Source: Mitre, NVD

Published: 2025-12-17

Updated: 2026-04-15

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 6.8

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

Severity: Medium

CVSS v4

Base Score: 7

Vector: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00048