Insufficient input validation in HECI subsystem in Intel(R) CSME before version 11.21.55, Intel® Server Platform Services before version 4.0 and Intel® Trusted Execution Engine Firmware before version 3.1.55 may allow a privileged user to potentially enable escalation of privileges via local access.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.