Intel, AMD Processors Affected by PCIe Vulnerabilities

Major hardware vendors are investigating the potential impact of three recently discovered PCI Express (PCIe) vulnerabilities. 

PCIe is the widely used high-speed hardware interface standard used to connect GPUs, SSDs, network cards, and other peripherals inside computers and servers. It also serves as a direct communication link between the CPU and these peripherals.

The flaws, discovered by Intel employees, affect the PCIe Integrity and Data Encryption (IDE) standard. The security holes are tracked as CVE-2025-9612, CVE-2025-9613, and CVE-2025-9614.

PCIe IDE, introduced in PCIe 6.0, is designed to secure data transfers through encryption and integrity protection.

“IDE uses AES-GCM encryption to protect confidentiality, integrity, and replay resistance for traffic between PCIe components. It operates between the transaction layer and the data link layer, providing protection close to the hardware against unauthorized modification of link traffic,” the CERT/CC at Carnegie Mellon University explained in an advisory.

“Three specification-level vulnerabilities can ...