Microsoft Word Remote Code Execution Vulnerability

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
An attacker must send a user a malicious Office file and convince them to open it.

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.

Are the updates for Microsoft Office LTSC for Mac 2021 and 2024 currently available?
Yes. As of July 15, 2025, the security update for Microsoft Office LTSC for Mac 2021 and 2024 are available. Customers running Microsoft Office LTSC for Mac 2021 and 2024 should ensure the update is installed to be protected from this vulnerability.

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

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.

Security updates
16.0.5508.1000 — https://support.microsoft.com/help/5002744
16.0.5508.1000 — https://support.microsoft.com/help/5002743
16.0.10417.20027 — https://support.microsoft.com/help/5002741
16.0.10417.20027 — https://support.microsoft.com/help/5002739
https — https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
16.99.25071321 — https://go.microsoft.com/fwlink/p/?linkid=831049
16.0.5508.1000 — https://support.microsoft.com/help/5002745