Out-of-bounds Read Vulnerability in Microsoft Excel
CVE-2025-59235

7.1HIGH

Key Information:

Vendor

Microsoft
Status
Office Online Server
Microsoft Sharepoint Enterprise Server 2016
Microsoft Sharepoint Server 2019
Microsoft Office 2019
Vendor
CVE Published:
14 October 2025

What is CVE-2025-59235?

An out-of-bounds read vulnerability in Microsoft Office Excel permits unauthorized attackers to disclose sensitive information from the affected application. This flaw can be exploited by targeting specific malformed data, which may inadvertently lead to the disclosure of information within the local environment. Users are advised to apply the necessary updates and security patches provided by Microsoft to safeguard their applications.

Affected Version(s)

Microsoft 365 Apps for Enterprise 32-bit Systems 16.0.1

Microsoft Access 2016 (32-bit edition) Unknown 16.0.0 < 16.0.5522.1000

Microsoft Access 2016 x64-based Systems 16.0.0 < 16.0.5522.1000

References

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

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
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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