Use After Free Vulnerability in Microsoft Excel by Microsoft
CVE-2025-27750

7.8HIGH

Key Information:

Vendor
Microsoft
Status
Microsoft Office 2019
Microsoft 365 Apps For Enterprise
Microsoft Office Ltsc For Mac 2021
Microsoft Office Ltsc 2021
Vendor
CVE Published:
8 April 2025

Summary

A use after free vulnerability in Microsoft Excel has been identified, which may allow an unauthorized attacker to execute arbitrary code locally on the affected system. This flaw could be exploited through specially crafted documents or manipulative payloads, posing significant risks for data integrity and confidentiality. It is essential for users to apply the latest security updates to mitigate potential threats associated with this vulnerability.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Excel 2016 32-bit Systems 16.0.0.0 < 16.0.5495.1000

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

.