A dmidecode bugfix update has been released for CentOS 7.

CEBA-2021:0854 CentOS 7 dmidecode BugFix Update

CentOS Errata and Bugfix Advisory 2021:0854

Upstream details at :   https://access.redhat.com/errata/RHBA-2021:0854

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

x86_64:
7b812c97766f36c2e477c31f7c5cfaabf34e7bfaf746d34a7f6971d6abc3e95c dmidecode-3.2-5.el7_9.1.x86_64.rpm

Source:
e98ba3314e7c5f7b5631d03bb72f3ce929cedaf3fd5386ef71cc432e2bf3c1f7 dmidecode-3.2-5.el7_9.1.src.rpm