CVE-2021-45540 : What You Need to Know

Certain NETGEAR devices are affected by command injection by an authenticated user. This vulnerability impacts various router models such as R7000, R8000, RAX200, and more.

Understanding CVE-2021-45540

This CVE involves command injection by authenticated users on specific NETGEAR devices.

What is CVE-2021-45540?

Command injection vulnerability allowing authenticated users to execute arbitrary commands on affected NETGEAR devices.

The Impact of CVE-2021-45540

The vulnerability has a CVSS v3.1 base score of 8.4 (High), with a significant impact on confidentiality, integrity, and availability.

Technical Details of CVE-2021-45540

The following are the technical details of the CVE.

Vulnerability Description

Vulnerability Type: Command Injection
CVE ID: CVE-2021-45540

Affected Systems and Versions

R7000 before 1.0.11.126
R8000 before 1.0.4.74
RAX200 before 1.0.3.106
Other models listed in the description

Exploitation Mechanism

The vulnerability allows authenticated users to inject and execute malicious commands on affected devices.

Mitigation and Prevention

Steps to secure and prevent exploitation of CVE-2021-45540.

Immediate Steps to Take

Update affected devices to the latest firmware versions
Change default passwords to strong, unique ones
Monitor network traffic for suspicious activities

Long-Term Security Practices

Regularly update firmware and security patches
Conduct security audits and penetration testing
Educate users on cybersecurity best practices

Patching and Updates

NETGEAR has released patches to address the vulnerability
Regularly check for firmware updates and apply them promptly