Improper input validation in the DAL subsystem for Intel(R) CSME versions before 12.0.64, 13.0.32, 14.0.33 and 14.5.12 may allow an unauthenticated user to potentially enable denial of service via network access.
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00295.html