Remote Code Execution Vulnerability in Microsoft Excel
CVE-2025-21387

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:
11 February 2025

Summary

Microsoft Excel is susceptible to a remote code execution vulnerability that allows attackers to execute arbitrary code on the user's system. This occurs when a user opens a specially crafted file in Excel. Successful exploitation could enable an attacker to gain the same user rights as the logged-in user, posing significant risks to data integrity and confidentiality. Users are advised to apply the latest security updates from Microsoft to mitigate this risk.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Excel 2016 32-bit Systems 16.0.0.0 < 16.0.5487.1000

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

.