CVE-2025-30376: Microsoft Excel Remote Code Execution Vulnerability

Published May 13, 2025
·
Updated

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Other sources

Microsoft Excel Remote Code Execution Vulnerability

Microsoft

Affected Software

21 affected componentsFixes available
Microsoft Office LTSC 2024 for 32-bit editions
Microsoft 365 Apps for Enterprise
Microsoft Office 2019 for 64-bit editions
Microsoft Excel 2016
Microsoft Excel 2016
Microsoft Office LTSC 2021 for 32-bit editions
Microsoft Office LTSC 2021 for 64-bit editions
Microsoft Office LTSC 2024 for 64-bit editions
Microsoft Office 2019 for 32-bit editions
Microsoft Office Online Server
Microsoft 365 Apps for Enterprise
Microsoft Office LTSC for Mac 2021
Microsoft Office LTSC for Mac 2024
Microsoft 365 Apps
Microsoft Excel=2016
Microsoft Office=2019
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 Macos=2024
Microsoft Office Online Server<16.0.10417.20010

Event History

May 13, 2025
CVE Published
via Microsoft·07:00 AM
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeakness
CVE Published
via MITRE·04:58 PM
Data Sourced
via MITRE·04:58 PM
DescriptionSeverity
Data Sourced
via NVD·05:16 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-30376?

The severity of CVE-2025-30376 is critical, as it allows remote code execution through a heap-based buffer overflow in Microsoft Excel.

2

How do I fix CVE-2025-30376?

To fix CVE-2025-30376, ensure that you apply the latest security updates provided by Microsoft for the affected versions of Excel.

3

Which versions of Microsoft Excel are affected by CVE-2025-30376?

CVE-2025-30376 affects various versions of Microsoft Excel including Office LTSC 2021, Office LTSC 2024, and Excel 2016.

4

Can CVE-2025-30376 be exploited remotely?

Yes, CVE-2025-30376 can be exploited remotely by an unauthorized attacker to execute code on a vulnerable system.

5

What type of vulnerability is CVE-2025-30376 classified as?

CVE-2025-30376 is classified as a heap-based buffer overflow vulnerability leading to remote code execution.

Contact

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