Untrusted Pointer Dereference in Microsoft Excel
CVE-2025-62200

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Office Online Server
Microsoft Office 2019
Microsoft 365 Apps For Enterprise
Microsoft Office Ltsc 2021
Vendor
CVE Published:
11 November 2025

What is CVE-2025-62200?

The vulnerability in Microsoft Office Excel involves an untrusted pointer dereference that can be exploited by unauthorized attackers to execute arbitrary code on the local system. This flaw poses risks to data integrity and system security, making it essential for users to ensure their software is up-to-date and follow recommended security practices.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Excel 2016 32-bit Systems 16.0.0.0 < 16.0.5526.1002

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

JSON
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CVE-2025-62200 : Untrusted Pointer Dereference in Microsoft Excel