Microsoft Publisher Security Feature Bypass Vulnerability

What kind of security feature could be bypassed by successfully exploiting this vulnerability?
An attacker who successfully exploited this vulnerability could bypass Office macro policies used to block untrusted or malicious files.

Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.

According to the CVSS metric, the attack vector is local (AV:L), privileges are required (PR:L) and user interaction is required (UI:R). How could an attacker exploit this security feature bypass vulnerability?
The attack itself is carried out locally by a user with authentication to the targeted system. An authenticated attacker could exploit the vulnerability by convincing a victim, through social engineering, to download and open a specially crafted file from a website which could lead to a local attack on the victim computer.

Security updates
https — https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
16.0.5465.1001 — https://support.microsoft.com/help/5002566