Three PCIe Encryption Weaknesses Expose PCIe 5.0+ Systems to Faulty Data Handling
Dec 10, 2025
Hardware Security / Vulnerability
Three security vulnerabilities have been disclosed in the Peripheral Component Interconnect Express (PCIe) Integrity and Data Encryption ( IDE ) protocol specification that could expose a local attacker to serious risks. The flaws impact PCIe Base Specification Revision 5.0 and onwards in the protocol mechanism introduced by the IDE Engineering Change Notice (ECN), according to the PCI Special Interest Group ( PCI-SIG ). "This could potentially result in security exposure, including but not limited to, one or more of the following with the affected PCIe component(s), depending on the implementation: (i) information disclosure, (ii) escalation of privilege, or (iii) denial of service," the consortium noted . PCIe is a widely used high-speed standard to connect hardware peripherals and components, including graphics cards, sound cards, Wi-Fi and Ethernet adapters, and storage devices, inside computers and servers. Introduced in PCIe 6.0, PCIe IDE is designed to secure data ...
