CVE-2026-26110: Microsoft Office Remote Code Execution Vulnerability

Published Mar 10, 2026
·
Updated

Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

Other sources

Microsoft Office Remote Code Execution Vulnerability

Microsoft

Affected Software

26 affected componentsFixes available
Microsoft Office 2016
Microsoft Office for Android
Microsoft Office LTSC for Mac 2024
Microsoft Office 2016
Microsoft Office LTSC 2021 for 32-bit editions
Microsoft Office LTSC 2024 for 32-bit editions
Microsoft Office LTSC 2024 for 64-bit editions
Microsoft 365 Apps for Enterprise
Microsoft Office LTSC for Mac 2021
Microsoft Office LTSC 2021 for 64-bit editions
Microsoft Office 2019 for 64-bit editions
Microsoft Office 2019 for 32-bit editions
Microsoft 365 Apps for Enterprise
Microsoft 365 Apps
Microsoft 365 Apps
Microsoft 365 Copilot Android<16.0.19822.20000
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

Event History

Mar 10, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:05 PM
Data Sourced
via MITRE·05:05 PM
DescriptionSeverity
Data Sourced
via NVD·06:18 PM
DescriptionSeverityWeaknessAffected Software
News Published
via The Register·08:35 PM
News Published
via The Register·08:38 PM
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Frequently Asked Questions

1

What is the severity of CVE-2026-26110?

CVE-2026-26110 has been classified as a critical vulnerability due to its potential for remote code execution.

2

How do I fix CVE-2026-26110?

To fix CVE-2026-26110, apply the latest security update available for the affected Microsoft Office version.

3

What products are affected by CVE-2026-26110?

CVE-2026-26110 affects multiple versions of Microsoft Office, including Office 2016, Office 2019, Office LTSC 2021, and Office for Android.

4

What type of attack does CVE-2026-26110 enable?

CVE-2026-26110 enables an unauthorized attacker to execute arbitrary code on the user's machine through a type confusion vulnerability.

5

Is there a patch available for CVE-2026-26110?

Yes, Microsoft has released patches for CVE-2026-26110 that can be applied to the affected products.

Contact

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