CVE-2021-42275 : What You Need to Know
CVE-2021-42275 relates to Microsoft COM for Windows Remote Code Execution Vulnerability. Learn about the impact, affected systems, and mitigation steps.
This CVE-2021-42275 relates to a Microsoft COM for Windows Remote Code Execution Vulnerability that was published on 2021-11-10.
Understanding CVE-2021-42275
What is CVE-2021-42275?
This vulnerability allows remote code execution in Windows systems through Microsoft COM.
The Impact of CVE-2021-42275
The impact is categorized as Remote Code Execution with a base severity of HIGH and a base score of 8.8.
Technical Details of CVE-2021-42275
Vulnerability Description
The vulnerability allows attackers to execute code remotely in Windows systems.
Affected Systems and Versions
- Windows 10 Version 1809
- Windows Server 2019
- Windows Server 2019 (Server Core installation)
- Windows 10 Version 1909
- Windows 10 Version 21H1
- Windows Server 2022
- Windows 10 Version 2004
- Windows Server version 2004
- Windows 10 Version 20H2
- Windows Server version 20H2
- Windows 10 Version 1507
- Windows 10 Version 1607
- Windows Server 2016
- Windows Server 2016 (Server Core installation)
- Windows 7
- Windows 7 Service Pack 1
- Windows 8.1
- Windows Server 2008 Service Pack 2
- Windows Server 2008 Service Pack 2 (Server Core installation)
- Windows Server 2008 Service Pack 2
- Windows Server 2008 R2 Service Pack 1
- Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- Windows Server 2012
- Windows Server 2012 (Server Core installation)
- Windows Server 2012 R2
- Windows Server 2012 R2 (Server Core installation)
Exploitation Mechanism
The vulnerability can be exploited remotely using Microsoft COM in affected Windows versions.
Mitigation and Prevention
Immediate Steps to Take
- Apply security updates provided by Microsoft.
- Implement network segmentation.
- Enforce the principle of least privilege.
- Monitor network traffic for any suspicious activity.
- Consider disabling COM if not needed.
Long-Term Security Practices
- Keep systems up to date with the latest patches.
- Perform regular security assessments and penetration testing.
Patching and Updates
Apply the latest security updates from Microsoft to address this vulnerability.