Remote Code Execution Vulnerability in Microsoft Excel
CVE-2025-59224

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Office Online Server
Microsoft Office 2019
Microsoft 365 Apps For Enterprise
Microsoft Office Ltsc For Mac 2021
Vendor
CVE Published:
14 October 2025

What is CVE-2025-59224?

An use after free vulnerability has been identified in Microsoft Excel, allowing unauthorized attackers to execute arbitrary code locally. This security flaw could enable an attacker to gain control over a system, potentially leading to data compromise or control over affected systems. It's crucial for users of Microsoft Excel to apply recommended security updates to mitigate this risk.

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Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Excel 2016 32-bit Systems 16.0.0.0 < 16.0.5522.1000

Microsoft Office 2019 32-bit Systems 19.0.0

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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