CVE-2021-45606 Explained : Impact and Mitigation

Certain NETGEAR devices are affected by a stack-based buffer overflow vulnerability that can be exploited by an authenticated user.

Understanding CVE-2021-45606

What is CVE-2021-45606?

CVE-2021-45606 is a vulnerability that impacts certain NETGEAR devices, allowing an authenticated user to trigger a stack-based buffer overflow.

The Impact of CVE-2021-45606

This vulnerability has the following impact:

CVSS Score: 4.5 (Medium)
Attack Complexity: Low
Attack Vector: Adjacent Network
Availability Impact: High
Privileges Required: High

Technical Details of CVE-2021-45606

Vulnerability Description

The vulnerability involves a stack-based buffer overflow in specific NETGEAR devices.

Affected Systems and Versions

The following NETGEAR devices are affected:

R6400 before 1.0.1.70
R7000 before 1.0.11.126
R7900 before 1.0.4.46
R7900P before 1.4.2.84
R7960P before 1.4.2.84
R8000 before 1.0.4.74
R8000P before 1.4.2.84
RAX200 before 1.0.4.120
RS400 before 1.5.1.80
R6400v2 before 1.0.4.118
R7000P before 1.3.3.140
RAX80 before 1.0.4.120
R6700v3 before 1.0.4.118
R6900P before 1.3.3.140
RAX75 before 1.0.4.120

Exploitation Mechanism

The vulnerability can be exploited by an authenticated user to trigger the buffer overflow.

Mitigation and Prevention

Immediate Steps to Take

Update affected devices to the latest firmware versions available
Monitor for any suspicious activity on the network
Restrict network access to authorized users only

Long-Term Security Practices

Regularly patch and update all network devices
Implement strong authentication mechanisms
Conduct regular security audits and penetration testing

Patching and Updates

NETGEAR has released patches to address this vulnerability
Users should immediately apply the latest firmware updates provided by NETGEAR