Microsoft Office Information Disclosure Vulnerability

What type of information could be disclosed by this vulnerability?
An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory.

There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software?
Yes. Customers should apply all updates offered for the software installed on their systems. If multiple updates apply, they can be installed in any order.

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

Security updates
16.0.5561.1001 — https://support.microsoft.com/help/5002891
16.0.5561.1001 — https://support.microsoft.com/help/5002892
16.0.10417.20175 — https://support.microsoft.com/help/5002883
16.0.10417.20175 — https://support.microsoft.com/help/5002885
https — https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
16.111.26071215 — https://go.microsoft.com/fwlink/p/?linkid=831049
16.0.19725.20434 — https://support.microsoft.com/help/5002882
16.0.5561.1000 — https://support.microsoft.com/help/5002887
16.111.26071215 — https://www.microsoft.com/en-us/microsoft-365/mac/microsoft-365-for-mac?msockid=35f9adb0e74b61392038b90de6fe608c