A vulnerability has been found in AMD 3rd Gen EPYC Processors, 4th Gen EPYC Processors, 1st Gen EPYC Processors, 2nd Gen EPYC Processors, EPYC(TM) Embedded 3000, EPYC(TM) Embedded 7002, EPYC(TM) Embedded 7003 and EPYC(TM) Embedded 9003 and classified as critical. Affected by this vulnerability is an unknown functionality of the component System Management Mode. The manipulation leads to improper access controls.

This vulnerability is known as CVE-2023-20587. The attack needs to be approached within the local network. There is no exploit available.