CVE-2025-59240: Microsoft Excel Information Disclosure Vulnerability

Published Nov 11, 2025
·
Updated

Exposure of sensitive information to an unauthorized actor in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

Other sources

Microsoft Excel Information Disclosure Vulnerability

Microsoft

Affected Software

19 affected componentsFixes available
Microsoft Excel 2016
Microsoft Excel 2016
Microsoft Office 2019 for 64-bit editions
Microsoft Office 2019 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 365 Apps for Enterprise
Microsoft Office LTSC 2021 for 32-bit editions
Microsoft Office LTSC 2021 for 64-bit editions
Microsoft 365 Apps
Microsoft Excel=2016
Microsoft Excel=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=2024
Microsoft Office Long Term Servicing Channel=2024

Event History

Nov 11, 2025
CVE Published
via Microsoft·08:00 AM
Data Sourced
via Microsoft·08:00 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·08:00 AM
Affected Software
Updated
via Microsoft·08:00 AM
Description
CVE Published
via MITRE·05:59 PM
Data Sourced
via MITRE·05:59 PM
DescriptionSeverity
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-59240?

CVE-2025-59240 is considered a moderate severity information disclosure vulnerability in Microsoft Excel.

2

How do I fix CVE-2025-59240?

To mitigate CVE-2025-59240, users should apply the latest security updates provided by Microsoft for affected Excel versions.

3

What versions of Excel are affected by CVE-2025-59240?

CVE-2025-59240 affects Microsoft Excel 2016, Office 2019, Office LTSC 2021, and Microsoft 365 Apps for Enterprise.

4

What type of vulnerability is CVE-2025-59240?

CVE-2025-59240 is an information disclosure vulnerability that allows unauthorized actors to access sensitive data.

5

Could CVE-2025-59240 lead to further attacks?

While CVE-2025-59240 primarily results in information disclosure, the leaked data could potentially be exploited in further attacks.

Contact

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