VulnerabilityDeferred

CVE-2025-14303

Certain motherboard models developed by MSI has a Protection Mechanism Failure vulnerability.

HIGH 7.0EPSS 0.35%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 4.0: 7.0 HIGHCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.35% probability · 28th percentile
CISA KEV: Not listed
Weakness: CWE-693
Source: twcert@cert.org.tw

References

https://csr.msi.com/global/product-security-advisories
https://www.twcert.org.tw/en/cp-139-10577-3cd58-2.html
https://www.twcert.org.tw/tw/cp-132-10576-0a0fd-1.html

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.