Vulnerability in CPU, backdoor at hardware level

[pedro.de.marco]

I supposed this has been discussed.

Security vulnerability: RETBLEED transient execution information leak side-channel attack (CVE-2022-29900, CVE-2022-29901, CVE-2022-23825, CVE-2022-28693) | Support | SUSE

www.suse.com

I ran " lscpu " command yesterday at work at some system and it showed some vulnerabilities and today I ran " lscpu " on another system with another cpu and it's showing " Retbleed " vulnerability. These are worrying. Any more " linux related " info on this subject and how to handle it and should I move to the new generation of CPU for this purpose?