CVE-2021-40472 : Vulnerability Insights and Analysis

Microsoft Excel Information Disclosure Vulnerability was published on October 12, 2021, affecting various Microsoft products.

Understanding CVE-2021-40472

This CVE pertains to an Information Disclosure vulnerability in Microsoft Excel that has a CVSSv3 base score of 5.5.

What is CVE-2021-40472?

Title: Microsoft Excel Information Disclosure Vulnerability
Published Date: October 12, 2021
CVSSv3 Base Score: 5.5 (Medium)

The Impact of CVE-2021-40472

This vulnerability allows attackers to disclose sensitive information.

Technical Details of CVE-2021-40472

This section provides specific technical details regarding the vulnerability.

Vulnerability Description

Type: Information Disclosure

Affected Systems and Versions

Microsoft Office 2019 (Version: 19.0.0)
Microsoft Office Online Server (Version: 16.0.1)
Microsoft 365 Apps for Enterprise (Version: 16.0.1)
Microsoft Office LTSC 2021 (Version: 16.0.1)
Microsoft Excel 2016 (Version: 16.0.0.0)
Microsoft Office 2016 (Version: 16.0.0)
Microsoft Excel 2013 Service Pack 1 (Version: 15.0.0.0)
Microsoft Office 2013 Service Pack 1 (Version: 15.0.0)
Microsoft Office Web Apps Server 2013 Service Pack 1 (Version: 15.0.1)

Exploitation Mechanism

Attackers can exploit this vulnerability to access and disclose sensitive information.

Mitigation and Prevention

Tips to address and prevent the CVE vulnerability.

Immediate Steps to Take

Apply security updates from Microsoft.
Monitor for any unauthorized access.

Long-Term Security Practices

Regularly update software and security patches.
Implement access controls and encryption mechanisms.

Patching and Updates

Update Microsoft Office versions to the latest security releases.