Microsoft Word Remote Code Execution Vulnerability

How could an attacker exploit this vulnerability?
An unauthenticated attacker could exploit this vulnerability by crafting a malicious RTF file. If a user opens the file or it is rendered in the preview pane, the attacker could execute arbitrary code in the user's context.

Are the updates for the Microsoft 365 for Office currently available?
The security update for Microsoft 365 are not immediately available. The updates will be released as soon as possible, and when they are available, customers will be notified via a revision to this CVE information.

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?
The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.

Is the Preview Pane an attack vector for this vulnerability?
Yes, the Preview Pane is an attack vector.

Security updates
https — https://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates