CVE-2025-26642: Microsoft Office Remote Code Execution Vulnerability

Published Apr 8, 2025
·
Updated

Microsoft Office Remote Code Execution Vulnerability

Other sources

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.

— Microsoft

Affected Software

35 affected componentsFixes available
Microsoft 365 Apps
Microsoft 365 Apps
Microsoft Access=2016
Microsoft Excel=2016
Microsoft Excel=2016
Microsoft Office=2016
Microsoft Office=2016
Microsoft Office=2019
Microsoft Office=2019
Microsoft Office Long Term Servicing Channel=2021
Microsoft Office Long Term Servicing Channel=2021
Microsoft Office Long Term Servicing Channel Macos=2021
Microsoft Office Long Term Servicing Channel=2024
Microsoft Office Long Term Servicing Channel=2024
Microsoft Office Long Term Servicing Channel Macos=2024
Microsoft Office Online Server
Microsoft SharePoint Server=2019
Microsoft Access 2016<16.0.5495.1000
16.0.5495.1000
Microsoft Office 2016<16.0.5495.1000
16.0.5495.1000
Microsoft Office LTSC for Mac 2021<16.96.25041326
16.96.25041326
Microsoft Access 2016<16.0.5495.1000
16.0.5495.1000
Microsoft Excel 2016<16.0.5495.1000
16.0.5495.1000
Microsoft Excel 2016<16.0.5495.1000
16.0.5495.1000
Microsoft Office 2016<16.0.5495.1000
16.0.5495.1000
Microsoft Office 2019 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office 2019 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2021 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2024 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft SharePoint Server 2019<16.0.10417.20003
16.0.10417.20003
Microsoft Office LTSC 2021 for 64-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft 365 Apps for Enterprise<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC for Mac 2024<16.96.25041326
16.96.25041326
Microsoft Office Online Server<16.0.10417.20003
16.0.10417.20003
Microsoft 365 Apps for Enterprise<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases
Microsoft Office LTSC 2024 for 32-bit editions<https://aka.ms/OfficeSecurityReleases
https://aka.ms/OfficeSecurityReleases

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.5495.1000Patch KB5002701
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.5495.1000Patch KB5002703
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.96.25041326
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.5495.1000Patch KB5002704
  5. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in https://aka.ms/OfficeSecurityReleases
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.10417.20003Patch KB5002691
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.10417.20003Patch KB5002699

Event History

Apr 8, 2025
CVE Published
via Microsoft·07:00 AM
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
Description
CVE Published
via MITRE·05:23 PM
Data Sourced
via MITRE·05:23 PM
DescriptionSeverity
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-26642?

CVE-2025-26642 has been categorized as a critical vulnerability due to the potential for remote code execution.

2

How do I fix CVE-2025-26642?

To fix CVE-2025-26642, ensure that your Microsoft Office product is updated to the latest security patch provided by Microsoft.

3

Which Microsoft Office versions are affected by CVE-2025-26642?

CVE-2025-26642 affects various versions of Microsoft Office, including Office LTSC for Mac 2024 and 2021, Excel 2016, and Office 2019.

4

What are the potential consequences of CVE-2025-26642 if exploited?

If exploited, CVE-2025-26642 may allow an unauthorized attacker to execute arbitrary code on the affected system, compromising its security.

5

Is there a workaround for CVE-2025-26642 before applying the patch?

Currently, there are no effective workarounds for CVE-2025-26642, so updating to the latest version is strongly recommended.

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