Remote Code Execution Vulnerability in Microsoft Excel
CVE-2025-21354

8.4HIGH

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 January 2025

Badges

👾 Exploit Exists📰 News Worthy

Summary

A remote code execution vulnerability exists in Microsoft Excel that could allow an attacker to execute arbitrary code on the affected system if a user opens a specially crafted Office file. This vulnerability can pose significant risks, allowing unauthorized access to sensitive data and control over the user's machine.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Office 2019 32-bit Systems 19.0.0

Microsoft Office LTSC 2021 x64-based Systems 16.0.1

News Articles

favicon imageCyberScoop

Microsoft fixes 159 vulnerabilities in first Patch Tuesday of 2025

Microsoft has addressed a total of 159 vulnerabilities in the first Patch Tuesday of 2025, covering a broad spectrum of products.

21 hours ago

References

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

CVSS V3.1

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • 📰

    First article discovered by CyberScoop

  • Vulnerability published

  • Vulnerability Reserved

.