CVE-2021-38655 : What You Need to Know

A detailed overview of the Microsoft Excel Remote Code Execution Vulnerability CVE-2021-38655.

Understanding CVE-2021-38655

This section provides insights into the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2021-38655?

The CVE-2021-38655 is a Microsoft Excel Remote Code Execution Vulnerability that allows attackers to execute arbitrary code remotely.

The Impact of CVE-2021-38655

The impact of this vulnerability is rated as HIGH with a base severity score of 7.8 according to CVSS v3.1. Attackers can exploit this flaw to compromise systems and steal sensitive data.

Technical Details of CVE-2021-38655

Explore the technical aspects including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability exists in Microsoft Excel, allowing attackers to execute malicious code by tricking users into opening a specially crafted file.

Affected Systems and Versions

Multiple Microsoft products are affected including Microsoft Office 2019, Microsoft Excel 2016, and Microsoft Excel 2013 Service Pack 1 across various platforms.

Exploitation Mechanism

Attackers can exploit this vulnerability by convincing users to open a malicious Excel file, leading to remote code execution.

Mitigation and Prevention

Learn how to protect your systems and data from CVE-2021-38655 with immediate and long-term security measures.

Immediate Steps to Take

Users should apply security updates from Microsoft, be cautious of opening unknown Excel files, and implement security best practices.

Long-Term Security Practices

Regularly update security patches, conduct security training for users, and deploy endpoint security solutions to prevent future vulnerabilities.

Patching and Updates

Ensure that affected systems are patched with the latest security updates provided by Microsoft to mitigate the risk of exploitation.