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OpenAdvisories
High MSRC-CVE-2025-48812 1 CVE

Microsoft Excel Information Disclosure Vulnerability

Published Jul 8, 2025 · Updated Jul 15, 2025 · Revision 2

Vendor: Microsoft

Summary

Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation Unlikely. Customer action: Required.

Details

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

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.

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?
No, the Preview Pane is not 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
16.0.10417.20027 — https://support.microsoft.com/help/5002740
https — https://docs.microsoft.com/en-us/officeupdates/microsoft365-apps-security-updates
16.99.25071321 — https://go.microsoft.com/fwlink/p/?linkid=831049
16.0.5508.1001 — https://support.microsoft.com/help/5002749
16.0.5508.1001 — https://support.microsoft.com/help/5002734

Vulnerabilities 1

Revision history

  1. #2

    Microsoft is announcing the availability of the security updates for Microsoft Office for Mac. Customers running affected Mac software should install the update for their product to be protected from this vulnerability. Customers running other Microsoft Office software do not need to take any action. See the [Release Notes](https://go.microsoft.com/fwlink/p/?linkid=831049) for more information and download links.

  2. #1

    Information published.

References