CVE-2025-14303 MSI｜Motherboard - Protection Mechanism Failure
Physical attackers can bypass IOMMU protections to read and write arbitrary memory on MSI motherboards, enabling code execution and privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-14303?
CVE-2025-14303 is a high-severity vulnerability in MSI Intel 600 chipset motherboard, published on 17 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-693
Which versions are affected by CVE-2025-14303?
How do I fix CVE-2025-14303?
No fix has been published for CVE-2025-14303 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-14303 being exploited?
There is no known exploitation of CVE-2025-14303 in the wild and no public exploit code.
Sources
Also known as GHSA-w47f-xmcq-j6m3.