Intel have advised there is a new vulnerability affecting their processors. It looks like there are quite a few processors affected:

CVEID: CVE-2023-23583

Description: Sequence of processor instructions leads to unexpected behavior for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege and/or information disclosure and/or denial of service via local access.

CVSS Base Score: 8.8 High

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00950.html

I expect they will try and mitigate via a firmware or BIOS update. 

Additional info:

• https://blogs.vmware.com/security/2023/11/cve-2023-23583.html
• https://thehackernews.com/2023/11/reptar-new-intel-cpu-vulnerability.html