CVE-2019-1446 Explained : Impact and Mitigation
Learn about CVE-2019-1446, an information disclosure vulnerability in Microsoft Excel that could lead to unauthorized access to sensitive data. Find out affected systems and mitigation steps.
Microsoft Excel Information Disclosure Vulnerability
Understanding CVE-2019-1446
What is CVE-2019-1446?
An information disclosure vulnerability in Microsoft Excel allows improper disclosure of memory contents.
The Impact of CVE-2019-1446
This vulnerability could lead to unauthorized access to sensitive information stored in Excel files.
Technical Details of CVE-2019-1446
Vulnerability Description
The vulnerability in Microsoft Excel results in the disclosure of memory contents, posing a risk to data confidentiality.
Affected Systems and Versions
- Microsoft Excel 2010 Service Pack 2 (32-bit and 64-bit editions)
- Microsoft Excel 2013 Service Pack 1 (32-bit and 64-bit editions)
- Microsoft Excel 2013 RT Service Pack 1
- Microsoft Excel 2016 for Mac
- Microsoft Excel 2016 (32-bit and 64-bit editions)
- Microsoft Office 2010, 2013, 2016, and 2019
- Microsoft SharePoint Enterprise Server 2013 Service Pack 1
- Office 365 ProPlus for 32-bit and 64-bit Systems
- Microsoft Office Online Server
- Excel Services on Microsoft SharePoint Server 2010 Service Pack 2
Exploitation Mechanism
The vulnerability can be exploited by a remote attacker to gain unauthorized access to sensitive data stored in Excel files.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest security updates provided by Microsoft.
- Avoid opening Excel files from untrusted sources.
- Monitor for any unusual activities related to Excel files.
Long-Term Security Practices
- Regularly update Microsoft Office and related software.
- Educate users on safe handling of Excel files and data.
Patching and Updates
Ensure that all affected systems are patched with the latest security updates from Microsoft.